We agree on symptoms but not on causes. I don't think he's become a bad player or developed a bad attitude. More likely, for me, the much more disjointed team play is dragging him (and let's face it, plenty of others) down.
Leo is a class, class player - along with Upson way out in front our best player.
But the isolated battering ram role he's been giving this season would demoralise any player. He's been the focus for our more direct play and that generally means he has to spend a lot of the time chasing...