Mark Verstegen, a trainer who has worked with pros such as the Tampa Bay Rays's Carl Crawford, encourages setting "SMART goals: specific (without ambiguity), measurable (able to chart progress), achievable (within capability), relevant (should contribute to larger goals and objectives), time-based (not open-ended)." Equally important, Verstegen says, is to keep notes, making sure the program is working. "And when you do reach one of your goals," he says, "take time to celebrate."