For all the problems the Bucs have figuring out who the QB and RB is going to be, it's gotten far worse at WR. We had reliable veterans Galloway and Hilliard, both performing above and beyond expectations the past 2-3 years. They're gone now. And just as Clayton was showing signs of life, he's up for Free Agency.
The good news is that 1) Clayton may be up for FA, but I doubt he'll find a decent market for himself, and 2) The Bucs have Antonio Bryant stepping up to a Pro-Bowl level performance this past season. The bad news? The Bucs tagged Bryant with a Franchise tag. It means we'll keep him barring a major trade, but it also means a good chunk of cap space gets eated for one year.
The deal is, aside from Clayton's rookie season the Bucs' recent track record of drafting WRs is rather hideous. Last season's disappearing act of touted App. State dude Dexter Jackson is currently ranking as the Bucs' worst draft pick since Kenyatta "False Start or Holding Penalty" Walker. The Bucs have done a slightly better job of securing decent WRs (McCardell, Jurevicius, Galloway, Hilliard, Bryant) through the FA/trade routes. Problem is, the Bucs may be desperate enough in the need to upgrade a poorly stocked offensive unit that a top round draft pick is gonna be used at this spot. I seriously suggest getting someone decent (AND NOT TERRELL! if the Cowboys cut him... OH GOD NO!)
UPDATE: The Bucs have indeed re-signed Clayton. While the price tag looks pretty high, it does retain continuity. If Clayton shows improvement to counter Bryant (and give the Bucs a 1-2-3 combo with TE Winslow), it will be worth it. But the Bucs still need a serious down-the-field rocket...

The Bucs defensive collapse in December will remain one of the greatest regular season disasters in team history... well other than most of the 1980s. But still. The Bucs simply fell apart versus the run game: nobody was filling their gap duties up front, and opposing RBs were cutting into open space before the LBs could cover the gap(s). The loss of starters at DT due to injury is the culprit here: that and the lack of depth and talent. The Bucs have always had too few DTs to fill in, and now that's caught up to the team's performance.
With regards to FA, the market got a huge bounce up with reports of Tennessee's DT Haynesworth looking to test the market. A monster on the field, but there are questions about locker room attitude. Still, if he's available, and there's cap space aplenty, this should be a priority for the Bucs.
With regards to the draft, the scouts are not spotting a lot of up-front starters at the DT spot. It really does depend on FA here: if the Bucs don't get Haynesworth or anyone else of like caliber (ha!), they are going to have to use the First Rounder on a DT.
UPDATE: The Bucs did attempt to snag Haynesworth, but he's gone to Washington. And then the Titans filled their gap by signing Haye from us. While the Bucs re-signed Ryan Sims, it isn't the best move they can make: he didn't exactly impress during December's collapse... If FA continues like this, the Bucs are bound to use the First Rounder on a DT.

Where did the Safeties go during the December debacle? I'm not too sure, and I'm not entirely sure if the talent is as good as it was two years ago. Newcomers Tanard Jackson and Sabby Piscitelli seem to have a lot to learn, but one hopes that improvements with the defensive line will help. It's also a question about the apparent shift of the defensive scheme away from Cover-2 sets, meaning the Safety positions might be asked to do something other than play deep in coverage. Until we can get a good idea what's going on with that, the Bucs ought to let the youngsters keep their spots this year, and should only consider drafting rookies for depth/special teams needs.