Possibly, that's a fair point, although in my experience when things are going well a malcontent can't get any traction so they tend to stay piped down, it's when things get tough that a snide will grow a pair and start causing grief. If there were players last season who weren't keen on the appointment, change in style or whatever, it will have been difficult to start sniping when confidence was high and the team and style were getting nothing but praise. Now that the wheels have come off a bit those tensions would be easier to work.