When people speak of draft philosophies they're generally discussing two disparate approaches: the Best Player Available(BPA) method, and the Need-based approach. There's something to say for both of them: drafting the best player you can find will increase your team's overall talent level. At the same time you run the risk of an unbalanced roster, which occurs quickly if you have a GM like Matt Millen who will just draft a wide receiver in the top 10 every year. Drafting players based on need will fix all holes on your roster at the expense of total talent on the team, and will leave you with a roster like the Seahawks have now.
So in the end, almost every team settles for some form in between need- and BPA-drafting. Most teams have some needs they need to fill and prefer to fill through the draft, but they don't want to compromise their talent-base. Only the very best teams have no needs, and even they let their draft be led by positional strengths and weaknesses. After all, you won't see the Packers or Bucs drafting a quarterback in the first round of the upcoming draft, regardless of how high they have that player ranked on their draft board.
Here's the good news: the Bucs are moving toward that territory. While some positions will always be better stacked than other positions, the Bucs only have on truly glaring need on the roster that can cripple any title aspirations: a lack of quality defensive ends. If the Bucs fill that need they will have talent they can win with at every position, and can afford to take a BPA approach in the future. I'm looking forward to the day that happens, but until it does, the Bucs do need to fix at least their biggest need in the draft: pass rushers.