Here is what I would like to see...
Re-sign Greer to a new 3 or 4 year contract ASAP
Keep McGee in 09 and then let him walk(see performances against Ginn and Braylon among others) after the year when his contract expires.
McKelvin
Youboty(If he stays healthy in 09, re-sign him to a multi-year deal).
Corner
If Youboty stays healthy, no need to take a day 1 CB in either 2009 or 2010 drafts.
In summary,
Invest in Greer, not in McGee