I think that his character was sort of reaching a dead end, i mean he let his wife getting killed by the club go and then his dad, i doubt the writers were going to have him kill clay this season, it made sense from that point of view.

This seasons been good so far, i felt the last two seasons were just badly written, but it seems there up to standard now, they needed to definatley needed the sons to have face some serious consequences for previous actions.