Now, it’s the rookie in the second spot on the depth chart heading into the preseason, behind starter Sam Bradford.
The first-rounder from UCLA has taken his work with the ones when Bradford gets veteran days in camp (like yesterday), which is good training for what seems inevitable when you go into a season with Bradford as your starter.
That could make Glennon and his two-year, $8 million deal surplus to requirements, or an attractive commodity to other teams looking to upgrade at backup quarterback.
Butler signed with the Cardinals in April after an unremarkable three-year run with the Cowboys in which he averaged 14 catches a season. The Cards list Chad Williams and J.J. Nelson as the second-string wideouts, ahead of second-rounder Christian Kirk and journeyman comeback story Greg Little.