Colin Kaepernick had an outstanding string of starts to finish the 2013 regular season and into the playoffs after taking over for Alex Smith as starting quarterback of the San Francisco 49ers.

Kaepernick's blend of speed and arm strength showcased some of his potential. 

"I think Colin Kaepernick, in my humble opinion, he has a chance to be one of the greatest quarterbacks of all time…a chance," said Jaworski.

The New York Giants have received praise for their decision to draft Ryan Nassib in the fourth round of last weekend's NFL Draft.

Nassib will backup Eli Manning at quarterback.

Nassib will earn $640,000 whereas backups such as Matt Hasselbeck will earn $5 million with the Indianapolis Colts and Matt Cassel will make $3.7 million.

Aaron Rodgers' new contract with the Green Bay Packers includes a $35 million signing bonus.

Rodgers and the Packers structured the deal in a way to maximize the team's cap flexibility.

Rodgers' cap number year-by-year will be as follows:

2013: $12 million
2014: $17.9 million
2015: $18.6 million
2016: $19.6 million
2017: $20.65 million
2018: $20.9 million
2019: $21.1 million 

The deal gives Rodgers $54 million in guaranteed money.

A study that examines the past 13 seasons shows that second round draft picks provide 70 percent of the production of first rounders at just 40 percent of the salary.

Worcester Polytechnic Institute conducted the study.

"That's a significant value and it tells me that general managers should give more value to second- and third-round picks," said Craig Wills, the head of WPI's Department of Computer Science.

Philip Rivers has begun intensive studying of the San Diego Chargers' new offensive system.

“I’ve always studied and grinded hard and worked at it,” Rivers said. “But I didn’t have to study what the running backs plays and routes were in the past. I knew it … Now, I don’t have it down stone cold. I hate not having it down stone cold.”

Mike McCoy was talking last month at the NFL Owners Meetings and said the Chargers would proceed this offseason however quickly Rivers would allow them.

“Our install will go as fast as the quarterback can handle,” McCoy said then. “Everyone else has got to keep up with the quarterback.

“He wants to learn every little detail of the offense,” McCoy said this past week, shortly after running his first practice as Chargers head coach. “Even out there today, he was asking some great questions about the next step in what we’re doing and it’s like, ‘Hold on now, slow down, it’s just Day One out there. We will get to that, but right now we’re introducing the base to everybody.’ ”

The Oakland Raiders won't run a zone-blocking offensive scheme this season under new coordinator Greg Olson.

Darren McFadden rushed for a career low 3.3 yards per carry last season.

"I came in last year with my hopes super high," McFadden said Thursday. "They were just crushed. So I wanted to put that behind me and move forward."

Olson replaced the fired Greg Knapp

"It's a downhill offense," McFadden said. "That's one of the things I like about it. I'm the type of guy I like to get going downhill, so I'm looking forward to it. I think it's going to be a great fit for our team.

Kevin Kolb is excited to have C.J. Spiller in his backfield with the Buffalo Bills after having mid-level backs such as Beanie Wells and LaRod Stephen-Howling while with the Arizona Cardinals.

"Explosive," Kolb said on Wednesday. "Yeah, super-explosive. He's truly a bounce in every step, and there's very few of those around."

Kolb was asked if any teammates from his past compare to Spiller.

"The first thing that came to mind, but they're still different players, is Brian Westbrook," Kolb said, "because I played with him in Philly, and he was obviously a special player, Pro Bowler that last year I had him over there.

"C.J.'s plenty explosive, and he's got all those capabilities as well."

Peyton Manning wants the Denver Broncos to move faster on offense next season.

Denver tied for the fourth-most offensive plays in 2012.

The Broncos ran 1,090 offensive plays during the regular season, an average of 68.13 per game.

"For whatever reason, our offense plays better the faster we go. I think that was clear cut last season. The receivers liked it; they got into a rhythm," Manning said. "Anything we can do as an offense to build off that, anything we can do to make us more efficient as an offense, that's what we're looking to do."

Nick Saban has hosted several NFL coaches this offseason as defenses learn how to best stop the zone-read offense.

The San Francisco 49ers, Washington Redskins and Seattle Seahawks all used elements of the zone-read last season.

Saban said the NFL is a pass rush-oriented league and that the zone-read sets up to exploit overpursuing defenses.

Saban also said that the 49ers have run the zone-read the best because of how they vary their looks so frequently.