While I don't mind the 3-0 green light most of the time, Montoyo should have given Teo the take sign in that situation. The pitcher just walked Vladdy and fell behind 3-0 to Teo. A walk was a run and Teo would have gotten another fastball on 3-1 anyway. If the result was a DP (which it should have) and we lose the game, there would have been serious criticism of Charlie deciding to give the green light with a pitcher who couldn't find the strike zone.