The Colts offense has looked very good in spots the last few games. The biggest reason for that is the improved play of the offensive line. It has become the most improved unit on any team in the NFL. That isn’t an understatement either.
This line was terrible early in the year, and last year as well. But they have vastly improved the last three weeks or so. That coincides with the return on Anthony Castonzo at left tackle. Having him back has made a huge difference, mainly because Le’Raven Clark isn’t there.
But after struggling to protect Andrew Luck early on, the Colts haven’t allowed a sack in the last four games.