Before the season (given last year's results and the offseason situation), I'd have said that it was likely a 1 or 2 win season (obviously Howard was the expected win and then another win off one of the lesser teams on the schedule).
So 4 wins would definitely be in the range where I think giving Braun another year has to be looked at...
It's going to be tough to get to 4 wins, but we should have our chances against Purdue, Illinois, Nebraska. This week against Duke should tell us a lot more about this team given Duke's one of the 3 toughest on the schedule (Iowa's defense is elite as always and Penn State looks to be a CFP contender).