Mid-season overhauls are almost impossible in the NFL.
A running back can get into rhythm and work on tweaks to footwork and process.
A corner can hone technique and reiterate detail.
A quarterback can rep footwork and give himself reminders about his mechanics.
Major changes, though, are usually an offseason proposition.
In search of incremental improvement as Denver rolls toward a stretch run with major consequences for not only potentially an AFC West division title but also the No. 1 overall seed in the conference, quarterback Bo Nix has set about trying to find little areas to hone his game.