I don't know really Ron if a) whether he would do it or it b) would it be effective. Not sure if morale charts is really your average footballers thing and particularly if the manager has never tried this sort of thing with them before they may not really treat the situation seriously. That said sometimes team discussions, airing your grievances,etc can do some good. However it can also do further damage, if a lot of the grievances are with the manager and everybody airs them then it can undermine the manager. It also depends on if he is the kind of stubborn manager who genuinely believes he has the dressing room and is doing the job well and can't see why you would change things. It takes a lot for anybody to firstly admit they may not be doing a decent job and secondly openly going to your boss to say so!