Injuries on defense didn't help Hooker either. Instead of playing cover 1 with Hooker as the single high to roam and make plays, we played mostly cover 2 and when you can't leave your zone, you take away Hooker's best asset.
Benching him may have hurt his confidence, but Reich could have been honest with him and I'm sure Brissett would have been ok with the news. He just had to tell Brissett he's still hurt, he's currently struggling, and the league has you figured out. Show Brissett his first-half numbers per game compared to his second-half numbers.
Tell Brissett to heal up and work on improving your game while making adjustments. We're out of the playoffs, so we are going with Kelly, and you'll get a chance next year. Simple as that. JB has to learn as well that bad play is not rewarded. That would send a negative message to him and the team.