This is exactly how I've come to think about them as well. If you get involved with something, someone might blame you. I think that's why (bad) managers often

This is exactly how I've come to think about them as well. If you get involved with something, someone might blame you. I think that's why (bad) managers often just don't seem to make any decisions. You need to know if the feature should be like X or Y, why won't they just make a decision and tell you? It's because they instinctively understand if they can get away with not making a decision (e.g. you stop waiting and just go for one of the option, or you contact someone else to make a decision) then there's less chance they'll be blamed for stuff.