Most significant signing: The signing of former Cincinnati defensive end Michael Johnson has been the team's biggest move by far. The Bucs came into free agency looking to improve their pass rush and they accomplished that by signing Johnson. He had only 3.5 sacks last year, but had 11.5 in 2012. The hope is that Johnson can give the Bucs double-digit sacks.
Most significant loss: The beauty of this free-agency period is the Bucs didn't really have any significant free agents of their own. They did lose Dekoda Watson (Jacksonville) and Adam Hayward (Washington). Those losses took away some of their depth at linebacker. More significantly, Watson and Hayward were regulars on special teams, and the Bucs have to find players to fill their roles.
Biggest surprise: It was no surprise the Bucs released cornerback Darrelle Revis and his $16 million salary. But it was surprising that the Bucs replaced him with Alterraun Verner at such a reasonable rate (four years, $26.5 million). Verner is not on the same level as Revis, but he should fit very nicely in the Tampa 2 scheme.
What's next? The Bucs have made a lot of moves, but there is still more work to be done. That's what happens when you're coming off a 4-12 season. They need to add some speed at wide receiver and continue to solidify their offensive line.