Imagine with me, if you will, a young hotshot baseball prospect.
He came up with his hometown organization, a bright prospect with a bright future. A hero among the locals. He scorched his way into the baseball consciousness by hitting .359 with 10 home runs and an OPS of 1049 in his first month and a half.
Then, he struggled to finish that year. The next year, he did okay, but worse - in fact, he was below average. The next year, he struggled again. His fourth year in the majors, he seemed to have hit rock bottom - he posted a 653 OPS and an abysmal .294 OBP. His power was gone. He made no strides in his plate discipline. He did nothing to capitalize on his promise.