Competition on his national team, competition at his club. Good. Also a World Cup coming, which means Tim has extra incentive to be on his toes. He's nowhere near as bad as some of you make out, but competition can only be a good thing.
He should start out the season, but if Robles is good, and Tim makes mistakes, all bets are off.
Glad we have someone decent to take the reins also in case of injury.
One note before all of you toss Howard to the curb - he can actually be a good mentor to Robles. He's vice captain of his national team, meaning there is leadership ability there. I'd be glad to see him take Robles under his wing and help him out. That's what the good ones do.