With the Denver Broncos having their best offseason in years, it's both an exciting and an anxious time to be a Broncos fan.
The Broncos signed possibly the biggest free agent in NFL history when they were able to acquire Peyton Manning after starting off as distant afterthoughts in the "Manning race." In the process of signing Manning, they were also able to sign Super Bowl XLIV hero Tracy Porter to replace incumbent starting cornerback Andre Goodman.
Tight ends Jacob Tamme and Joel Dreessen were also signed after the Manning sweepstakes came to a close, addressing much needed holes in that area. Both Tamme and Dreessen are capable receiving threats at the tight end position, with Tamme posting his best season to date in 2010 with Manning throwing him the football.
By most accounts, the Broncos upgraded their roster. However, it does remain to be seen if these new acquisitions will pay off. It also remains to be seen whether Denver's holdovers from their 2011 AFC West champion season will be able to contribute enough for the Broncos to be true contenders in the AFC in 2012.
Here are the biggest question marks heading into 2012 for the Denver Broncos.