From the start of the summer, he has made it no secret that he doesn't like the board. Nolan, one of his best mates (and one of top players last season, well regarding his goals/influence anyway), would have been the last person you'd expect to leave NUFC.
So maybe it's a matter of Joey just naming our best players from last season randomly as a way of saying: "if these trends continue, then these players will be off, blah blah."