Cardinals QB Kevin Kolb said he was able to practice “a little bit” on Wednesday after tests evaluating the concussion he sustained in Sunday’s win over the 49ers. “The symptoms are down,” he said. “It’s just a matter of making sure they are down long enough to where I can get out there and then be in full-speed action. That’s the key right now. It’s a touchy subject, and we want to make sure that we err on the right side.”