Manning would need help in Denver

Updated: March 13, 2012, 8:25 PM ET
By Steve Muench

The Peyton Manning sweepstakes is still playing out, and the Denver Broncos are among the top contenders for Manning's services.

However, just as my colleague Kevin Weidl pointed out about the Arizona Cardinals, signing Manning alone won't be enough to push the Broncos over the hump, even if he is 100 percent healthy. Denver Executive Vice President John Elway and his staff will still have plenty of work to do.

What else do the Broncos need?