I think one of the main reasons he stays in LA is because it is easy and comfortable for him. His family and friends are close, weather is perfect, MLS is an easier league, LA Galaxy are considered top dogs. But if he wants a challenge and to advance his career he should move to Everton permanently. He had a few bad permanent spells in Germany but I think he would do well under a full season in the Prem League. Besides playing in the MLS has stagnated his game, you can tell when he plays for the US national team, he played much better for the USA after a loan spell in England. Or at least I thought his experience at Everton hightened his game.