I think if Altidore's not ready to go it's more likely Hamilton that gets the start than Ricketts. Seba and Tos don't really gel on there own together while Hamilton showed well playing with Seba last year over the summer. It's been a while since they've had the chance to give Hamilton minutes anyway so I assume they'll take the opportunity. Better to have Altidore and Ricketts coming on after 60 mins to close out the game against a tired defence playing a high line too.
Bradley's a freak of nature though. He'll start every game when healthy.