Since when is coverage all about speed? If that were the case, Ronde Barber and Brian Kelly wouldn't even be in the league!
And Zemaitis ran a 4.53 before the draft.
Barber is a 4.5 guy I believe and Kelly is a 4.4 guy. Do not believe in the garbage some spew that Tampa's corners are slow beucase they play zone. Nece was a 4.4 guy before his knee injuries. Brooks is very good in coverage even though he is a 4.6 guy.
If you ask me I rather see Nece covering Bush then Zemaitis or Bolden downfield. But in the first 20 yards speed is NOT that important in covering a back as Ruud and Brooks are evidence of this as both do not have the straightline speed but the burst within the first 20 yards. Where straightline speed helps is downfield. This is why Kelly is a better man to man corner than Barber downfield. And that is why I feel Nece would fare better covering downfield than Bolden. Bolden is money within the first 20 yards but beyond that he is a liability.