1) I've specifically talked about growth on offense for Castro. Fregosi got a lot of that value from defense. 2) Fregosi showed growth in his offensive game over his first three years in the league, which kind of illustrates what I'm talking about. He did? He had 2 great fielding seasons and they were, not surprisingly, his peak WAR seasons. He also had the confusing run of seasons (fielding runs above - or below - average): 1968: -7 1969: -1 1970: 14 (2nd best ever for him) 1971: -1 1972: -11 1973: -13 (worst ever) So, yeah. When he hit his peak WAR, he had two great defensive seasons. When he had his worst WAR, he had his worst defensive seasons. But wOBA from 25-28? .337, .310, .340, .362. Injuries, including a broken thumb, started taking their toll and he was never a regular again after turning 30. I think it's difficult to justify your statement about his defense, which suggests that he wasn't a true 4-5 win player (at least until falling victim to injuries when he turned 30). Well, specifically I was looking at TT pointing out he peaked at a 7 war season, which was driven quite largely by his defensive performance that year. And a .368 wOBA. So, well, some of that value came from the bat too.