Grigson says better line should help Luck reduce mistakes

When it comes to quarterback Andrew Luck’s second NFL season, the Colts want to see Luck make fewer mistakes. G.M. Ryan Grigson thinks that’ll happen via blockers who make fewer mistakes. In an interview with Scott Pioli from training camp that aired on Tuesday’s Pro Football Talk on NBCSN, Grigson praised Luck’s “innate” ability to…