According to The Athletic’s Mike Sando (subscription), Indianapolis Colts general manager Chris Ballard ranks 6th best (tied) in the league when ranking each NFL GM (among the 26 incumbents, i.e. returning 2021 NFL GMs) by his ten most expensive free agent signings respectively:
T-6. Chris Ballard, Indianapolis Colts
Average signing score: 2.0
Philip Rivers helped get the Colts back into the playoffs on a below-market deal for higher-end starting quarterbacks, so his signing lands in Category 1 even though Indy might have wanted a second season from him.