Colts continue O-line revamping

The Colts are very serious about upgrading the protection for Andrew Luck.

They’ve had three picks so far, and have used the last two on linemen: Third-round guard Hugh Thornton and now fourth-rounder Khaled Holmes from USC, 121st overall.

The Colts signed Samson Satele as a free agent last year, but he had a disappointing season. When he was hurt, he was actually outplayed by undrafted rookie A.Q. Shipley.

Now both could lose out to Holmes, who came off the board in a round packed with interior offensive linemen.

He was better in 2011 than in 2012, like most of USC, and was hampered by an ankle injury.

Scouts Inc. rates him as above average in awareness:

"Makes pre-snap line calls and keeps head on a swivel once set. Quickly recognizes defensive line stunts and identifies pressure from the second level. Smart run blocker who understands angles and positioning. Flashes ability to adjust on the fly as a run blocker but inconsistent in this area and occasionally has a tough time locating second level blocks. Too quick to abandon combo blocks and release up to the second level at times."