Boils down to the simple fact that even with a knackered team thin on top quality, if we can't beat a very out of sorts and injury ridden Leicester team we've got no right to be annoyed, we simply don't deserve to be in the CL, we're simply not good enough if thats the case.
The players and the manager won't have any right to be annoyed - it will be entirely their fault. The fans most certainly will have a right, though!