What do you mean by see it all?
Do you mean to split your stay between Disney and USF?
It can be done. You stay 3 nights at Disney and 2 nights at USF in that order. Disney has everyone brainwashed into thinking they need to spend a week. That's because most people tour the parks slowly, and the rides at Disney take longer because of the pre-shows. But you can tour Disney in 3 days. You visit one park in the morning, and then another park at night, doing the highlites.
When you stay onsite at USF, you'll be spoiled with FOTL and you'll have plenty of time to see everything.