Did the Tampa Bay Buccaneers improve the most this offseason?

With three premium free agents in Vincent Jackson, Carl Nicks and Eric Wright and another three potential three-down starters with their first three draft picks as well as numerous free agent additions, the Tampa Bay Buccaneers have surely made massive improvements to their team this offseason. But when NFL.com asked its analyst to select teams that improved the most this offseason, only two managed to name the Buccaneers:

Daniel Jeremiah - After horrendous 2011 campaign, Bucs successfully executed an extreme makeover
The one team that has improved the most this offseason is the Tampa Bay Buccaneers. After a disastrous 2011 season, they have made several impactful moves to improve their squad.

First of all, they hired a very discipline-oriented head coach in Greg Schiano. Then they were extremely aggressive in free agency, bringing in premier players like WR Vincent Jackson and OG Carl Nicks. Finally, they hit a home run in April's draft. Safety Mark Barron and RB Doug Martin are both instant-impact players who will provide upgrades on both sides of the ball.

The NFC South is one of the NFL's toughest divisions, but the Bucs are now in position to compete for a playoff spot.

Charley Casserley - Buccaneers upgraded numerous spots on both sides of the ball
There are certainly a number of teams that have improved themselves, making this a tough call. But I'm going with Tampa Bay.

On offense, the Buccaneers added a No. 1 receiver in Vincent Jackson, a Pro Bowl OG in Carl Nicks and a No. 1 back in Doug Martin (who reminds me of Ray Rice coming out of college). Defensively, Mark Barron has Pro Bowl ability, Lavonte David should be a big producer at OLB, and Eric Wright will help at CB, allowing Ronde Barber to move to safety. I picked Tampa Bay, not only for the quality of players added, but also for the number of positions upgraded.

Quite frankly, I can't see how you'd pick any team other than the Buccaneers as the most improved team this offseason.