Development is not always linear, even for all-time greats.
Adrián Beltré has always known exactly how much more he had to give.
Adrían Beltré did not like having his head touched. Retirement probably does not change that.
Baseball is a game built on failure, and the successful separate themselves through their ability to cope with failure. In many cases, coping with failure begins with accepting its enduring presence without dwelling on it, when the objective becomes living without regrets. Of course, this goal is inherently unachievable; every day players encounter regrets large…