Pays to busy being Mr Nice Guy and submitting to players with assertive personalities. I believe (admittedly without seeing what goes on behind the scenes) that Lewis keeps running on because pay doesn't want to upset him, same with Smith at centre. Blind Freddy can see these guys don't belong where they are, yet pay walks on eggshells to beat of their drum at the expense of his own career.
Pay has seen glimpses of what works and to the contrary the things that clearly don't work throughout various stages of this limited season to gauge what best suits our teams aging style yet continues to field teams that are doing nothing but damage to the reputation of him as a professional coach.
Switch Smith back, he's not going to get a run at centre at any other clubs after his display at Canterbury, he's a winger he should be paid and played as a winger, if he doesn't like it good luck finding a club that will play him at centre.