Gauging

I can't quite fathom why you'd accept a certain responsibility and then complain afterwards. Just what the hell is that? I mean, seriously, at least have the mind to gauge what your capabilities are. Weigh the chances, the results, the problems that will arise. I don't think there's anything wrong in telling you can't do it. There's nothing wrong in designating a task to other people. Just don't accept something and then complain.