By Jennifer Piacenti WR Michael Pittman Jr. could have most to gain with an upgrade at QB. In an NFL Combine media session Tuesday at the Indianapolis Convention Center, Colts’ general manager Chris Ballard addressed the team’s failure to secure a playoff berth at the end of the 2021 season. Unsurprisingly, this led to questions about Carson Wentz’s future with the franchise. When asked if the team wanted to stick with the QB, Ballard said, “Not saying we don’t, but in the long-term best interest for us, as we sit down and work through whether Carson’s the long-term best answer or not is the b…