Building a defense starting from the back doesn't work

Bucs should have loaded up on defensive line men in free agency, and the first few rounds of the draft and then follow it up by selecting a TRUE safety that can actually tackle.What the Bucs are doing currently is the same failed strategy of the Morris-Schiano era.Bucs are crossing their fingers that Ayers and Spence can do enough.  Melton netted the Bucs last year with amazing leadership and depth especially with the loss of McDonald.Bucs are shaky depth wise at DT, and are in danger of having DE's that are one dimensional once more. Bucs number #1 goal this year should have been to add a dual threat DE.