They may get more pitches to swing at or less, depending on the threat level of teammates in the lineup. You should know which pitchers have also shifted leagues and which batters love to hit against those pitchers or who have a lifetime average approaching their weight or IQ against a particular hurler. Some guys hit .250 against everyone else, but .450 against Greg Maddux for example. Some of their potential blimps have to work off 30-50 pounds in the next 60 days or be fined or cut, despite salaries. Then there are others with magnificent work ethics who started rehab or new physical training immediately.
Some pitchers are in great form when to come to spring training.
They show it immediately and go on to win seven straight in April and May, but finish the season 11-l7 for some reason. If we could only figure out why they flop after the All Star game or before. Then there's the all-important bullpen. Most starters are lucky to go seven innings. It's an era of specialization.