There's no doubt that Chicago Bears' Pro Bowl right guard Kyle Long has the athletic traits necessary to play tackle. He has nimble feet, good lateral quickness and the necessary strength to play anywhere along the offensive line. The only thing that could hold him back is technique.
Long played less than a season at Oregon and his technique at right guard still comes and goes with the Bears, but during the final OTA this week, Long was getting some reps at right tackle.
The reason he kicked outside; There were a few offensive tackles sitting out practice, so the opportunity was there to throw Long at a new spot to get his feet wet.