Not being fully stretched out and not having muscles warmed up is also a factor. But sure, conditioning is an issue to which the players have to take some responsibility for, but the Saints do have a strength and conditioning staff that does not appear to be doing as good of a job as they should. If players aren't properly conditioned a major part of it is that they are likely not being given the proper program to follow. You can't expect every player to do like Kamara and hire his own personal staff for conditioning and recovery.