"I really like this football team," Harbaugh said. "This is a very difficult day. It was tough. We're still up in the air on a couple of things right now. There all kind of possiblities still out there. We're striving for our best 53 for now. In this league, it's very fluid. Nothing is certain. Once you get past the first week, you go to the second week and see where we're at."