IMO the Baylor game is absolutely critical. With road games at OSU and at Mizzou coming up, this game is huge. Lose at home to Baylor and the bottom could fall out at Mizzou. Our guys are logging major minutes and have got be exhausted. 0-4 going into Mizzou with a tired team, playing against their style could be bad, really bad.
Beat Baylor!
I agree this is one the team needs to win. Would've been nice to get at least one of the first two Big 12 games, considering both were within reach — but going into the season, I wasn't expecting better than 1-2 in the first three, so a Baylor win would be fine with me.
A win against OSU or Mizzou isn't unthinkable, but I'd feel more confident if those were at home. Winning in Stillwater is ... well, yeah. And as you said, Missouri's style of play could cause problems in the depth department.