There are three teams currently inside the top-ten most cap space that made the playoffs in 2021. These teams presumably look to be competitive next year and build on success from last year. The Cincinnati Bengals, Philadelphia Eagles, and Dallas Cowboys all fall into this list.
This article is not going to devolve into criticism against the Cowboys but they are the only team inside the top ten most cap space that made the playoffs without a rookie quarterback last year. There is no reason for Dallas to have this much cap room.