Andrew Luck reminds me in some ways of Ben Roethlisberger. Both are huge, very strong, mobile QBs that would do anything to extend a play to help their team win but who took a big-time beating in the process, to the point that it seemed possible that Luck's career might be over.
Now the Colts have invested some serious resources in a quality o-line (which is often all-White depending on injuries), while the Steelers did the same a few years ago, adding G David DeCastro as a first round draft pick and developing Alejandro Villaneuva at tackle along with their sumos. Makes a world of difference for QBs like Big Ben and Luck that excel at extending plays and avoiding sacks with a minimum of protection. Luck looks great again, which from CF's perspective is one of the understated positive stories of the 2018 season.