Sure they can decide, depending on how the decision process is set up. If they can vote on proposals and decide by unqualified majority, for example. You'd get

Sure they can decide, depending on how the decision process is set up. If they can vote on proposals and decide by unqualified majority, for example. You'd get a decision every time. (If you assume a tie-breaker rule like even votes mean no.) Of course the question remains whether decision by unqualified majority is a good thing.