There is plenty of work still to be done, but the Patriots have used Devin McCourty at left cornerback while rotating Arrington and Ras-I Dowling at right corner. With all three on the field at the same time, they might prefer Arrington in the slot because McCourty and Dowling seem to be more natural on the outside. If that’s how it shakes out in the regular season, Arrington wouldn’t have any gripes. “You have to see things quicker (in the slot),” Arrington said. “I like being where the action is.”