In the weeks leading up to the kickoff the 2008 NFL Season, I’ll take a look at position groups that could potentially lift teams to new heights, or bury them and their postseason hopes. Today I take a look at the Miami Dolphins’ quarterback situation after the team added Chad Pennington.

To say the Miami Dolphins had quarterback issues in 2007 would be putting it lightly. Whether it was Trent Green, Cleo Lemon or rookie John Beck, the results were the same and losses piled up in the standings.

Heading into 2008, the depth chart has changed but will the results? Gone are Green and Lemon; in are former New York Jets’ starting quarterback Chad Pennington and rookie Chad Henne.

When Bill Parcells took over the football operations for the Dolphins this summer, one of the areas he knew he had to upgrade was quarterback. And after watching Henne and Beck struggle in camp over the summer, Parcells reached out to the recently released Pennington – the quarterback he drafted when he was the Jets’ head coach.

The book is already out on Pennington: weak arm, severely limited, can’t throw downfield, etc. But he’s also a fundamentally sound veteran and a solid leader that can hopefully help tutor Beck and Henne for the future. Pennington is also familiar with the division and new offensive coordinator Dan Henning used to be his QB coach in New York so he knows the offense.

Eventually the Dolphins have to see what they have in Beck and Henne. It’s wise to allow young quarterbacks develop slowly, but sooner or later they have to sink or swim on the field. And while Parcells has a tendency to prefer players that he had a hand in drafting, Miami did spend a second round pick on Beck last year, so it would be unfair to give up on him too soon.

But at the very least, Pennington buys Miami more time to see what they have at the position. It’s also fair to say that Pennington gives the Dolphins the best chance to win this season and Parcells did him a solid by drafting massive left tackle Jake Long with the first overall pick in last April’s draft. Long will be counted on to protect Pennington’s blind side and hopefully give the Dolphins a cornerstone tackle for years to come.

While it’s unlikely he’ll lead the Dolphins to the playoffs this year, Pennington at least gives the team a respected veteran presence in the huddle and on the field. Time will tell if Henne or Beck can develop behind him.

In the realm of fantasy football, using early picks on rookies is usually a dicey proposition. It’s not often that a rookie comes into the league and is able to quickly establish fantasy relevance, though a few players do break through every season. Typically, a few running backs make an immediate impact, as that is the easiest position to transition to from college. In 2007, Adrian Peterson and Marshawn Lynch were drafted for the sole purpose of taking over their team’s running game, and they both went on to have successful seasons. Even an undrafted rookie like Ryan Grant can have an impact if he finds the right situation. (I was lucky enough to snatch him off the waiver wire before he went on his 10-game train ride to fantasy stardom. I went on to win the title in that league despite disappointing performances from two of my keepers - Shaun Alexander and Marvin Harrison.)

Last year’s wide receiver crop was a bit thinner. Dwayne Bowe was the top rookie, finishing in the top 20 in most scoring formats. This was an upset considering all the fantasy owners that were drooling over Calvin Johnson’s intangibles before the season started. James Jones and Anthony Gonzalez flirted with fantasy relevance, but otherwise rookie wideouts didn’t make much of an impact in 2007. But every year, it seems like there’s one or two that become starter-worthy. (Who can forget Marques Colston’s 2006 campagin?)

So let’s take a look at this year’s top fantasy rookies and see who’s likely to make an impact.

RUNNING BACKS

1. Jonathan Stewart, Panthers (pictured)
Stewart is a power back and that’s the Panthers’ style. DeAngelo Williams has been something of a disappointment, so if Stewart runs well during the rest of the preseason, it’s not inconceivable that he could earn a starting role. However, durability is a concern with Stewart, so it is more likely that the Panthers will split carries to keep him fresh and injury-free.

2. Darren McFadden, Raiders
Due to his combination of strength and speed, some compare the #4 overall pick to Adrian Peterson. McFadden joins Justin Fargas and Michael Bush in the Raider backfield. Fargas had something of a breakout season in 2007 and Bush is running very well in camp, but McFadden will still get his touches. The team has said they’d like to use McFadden like the Saints used Reggie Bush in his rookie season. Oakland won’t want to wear him out, so this looks like a RBBC for the time being.

3. Matt Forte, Bears
The Bears drafted Forte in the second round to shore up a struggling running game. Cedric Benson was a bust, but the offensive line has been suspect for a couple of years now, so there’s no telling just how much Forte will help Chicago’s ground game. He has looked solid in the preseason, and should be a solid RB3 in most fantasy leagues.

4. Kevin Smith, Lions
Smith is one of the more promising rookies simply because the Lions don’t have any other good options at tailback. Tatum Bell and Brian Calhoun haven’t made their mark, so it’s Smith’s job to lose. He has had durability and character issues during his career, so there is some question as to whether or not he can hold up to the wear-and-tear of a 16-game season. Still, given the lack of competition, he’s an intriguing middle-round fantasy pick.

5. Chris Johnson, Titans
The diminutive speedster seems to be earning a bigger and bigger role as the preseason wears on. LenDale White will get most of the work between the tackles (and, presumably, around the goal line), but Johnson will see a lot of work in the passing game and as a change-of-pace back.

6. Ray Rice, Ravens (pictured)
With Willis McGahee coming off of knee surgery, and Rice impressing in camp, there’s a real possibility that the rookie starts at tailback in Week 1. There are rumblings that the team is none too happy with McGahee’s (lack of a) work ethic, so Rice’s value is enhanced in keeper or dynasty leagues.

7. Rashard Mendenhall, Steelers
The Steelers raised some eyebrows (including Willie Parker’s) when they drafted Mendenhall in the first round. For now, they see him as a complement to “Fast” Willie, but he should eventually turn into an every-down back. The writing is on the wall for Parker; it’s just a matter of time before Mendenhall takes over as the Steelers’ feature back.

8. Steve Slaton, Texans
Ahman Green is hurt. Big surprise. Chris Brown is hurt. Big surprise. Somebody has to carry the ball in Houston and Slaton is second in line after Chris Taylor. Slaton has better speed, but Taylor is a little more physical. If Green and Brown continue to miss time, we might be looking at a Taylor/Slaton RBBC in Houston.

9. Felix Jones, Cowboys
Jones is the “lightning� to Marion Barber’s “thunder,� but this isn’t a timeshare. Barber is the main back, and Jones will be used to spell him and to add some punch out of the backfield in the passing game. Barber owners should definitely target Jones as a handcuff in the late-middle rounds.

The Miami Dolphins signed former New York Jets quarterback Chad Pennington to a two-year, $11.5 million contract. Pennington was cut by the Jets after they acquired Brett Favre via a trade with the Green Bay Packers.

“I have enjoyed it,” Pennington said Friday in his first public comments since his release. “I’ve learned a lot, become a better professional and a better man because of my experience and my time in New York. I don’t regret or feel ashamed about anything that happened to me in my time in New York.”

One of the hardest-working and most cerebral quarterbacks in the league, Pennington is the perfect fit to tutor the youngsters on the Dolphins’ roster who could eventually become a successor.

That’s a pretty expensive tutor. Far be it for me to question anything Bill Parcells does, but this signing makes little sense. Word out of Miami is that John Beck and Chad Henne haven’t looked good this summer, but it’s only mid-August. Wouldn’t the Dolphins (a team that probably won’t compete for two years at the earliest) be better served if they got their young quarterbacks some playing time and used the $11.5 mil to upgrade their defense or skill positions?