I wouldn't worry about it, unless Earl's getting paid to run balls, he'll be quiting shortly. By the fact that he giving lessons instead of running balls, and quiting instead of finishing out a run, is showing all the signs of being to distracted/frustrated to continue on much longer.
You could not be much more wrong, again -- Bobby set up lessons during Earl's visit so Earl could make some dough while he was in town.
Lou Figueroa