While the Colts currently have him listed at No. 2 on the depth chart at left tackle, don't expect that to last too long.
Jim Irsay's Christmas present to Peyton Manning came in April in the form of 6'7", 305-pound human body guard Anthony Castonzo. The Colts' No. 1 pick, as well as their No.1 target, carries lots of expectations with him into his rookie season.
The Colts haven't had a good left tackle since Tarik Glenn retired from the team after the 2006 season. The team tried Tony Ugoh. He didn't work. It tried Charlie Johnson. He didn't work. Castonzo needs to work for the team to succeed.
All indications say he will. Ask any offensive rookie on the Colts what their biggest challenge is, and it's learning the playbook. Peyton Manning's offense is not for the stupid. It's a complex, on-your-toes offense, especially for the lineman. Castonzo's left tackle position is one of the most important on that line since he protects Peyton's blind side. Luckily, Castonzo's not stupid. He was a Rhodes Scholar finalist.
Castonzo started 54 games during his time at Boston College. He knows how to play. His senior season, he only surrendered one sack and recorded 40 knockdown blocks. He's not a false start machine either. He only had two penalties against him his final year.
Castonzo will play a vital role to the team this season, despite being a rookie. It's no secret that Peyton is aging. On top of that, he's coming off of neck surgery. He needs to have solid protection from his blind side.
If Castonzo fails to provide that, it could be a long season for No. 18 and, in return, for the Colts.