Most trades are plug and play. A player navigates a whirlwind in uprooting himself and often his family to get to a new city, makes a number of introductions in the clubhouse, learns a few new signs, then jumps into a batter’s box or on a mound and does something completely familiar.
Life for a traded catcher is different.
He’s tasked with forming new relationships with pitchers, figuring out the pitch types and locations they feel most comfortable employing in very specific situations, then works through the dynamics of a multi-variable process to try to help members of a new staff stay in a flow state on the mound.
Newly acquired catcher Adley Rutschman’s view on the magnitude of his task?
“It’s a unique situation,” he acknowledged at Fenway Park on Tuesday, his first day with the Red Sox. “I’ve never been traded before.”
Read more from Alex Speier at BostonGlobe.com/Sports. | 
