Will Anthony Castonzo be the left tackle in 2020?

The Colts still haven’t heard back from Castonzo this offseason on his decision of retirement. The veteran left tackle is a massive piece to the offense and should he decide to hang them up, the Colts would be in big trouble. While the needs are clear for the Colts in that they have to address the quarterback and wide receiver positions, left tackle would become a major need if Castonzo does retire. This is especially true seeing as they don’t have a player that can fill in.