For once Kiszla makes sense.  Nothing against Trevor personally, but we need all the help we can get.  I'm getting frustrated with the turnovers and three and outs.  And with no guaranteed wins left on the schedule, except for maybe Cincinnati and Oakland, Vance needed to shake things up.  Brock has experience coming into tough situations and delivering; when Peyton was hurt during our last Super Bowl championship run, Brock did an admirable job.  Let's hope we see a repeat of 2015.