Baseball players, on the whole, are traded far more often than their peers in football and basketball combined (the NHL nearly matches MLB in trade count). Since the start of the 2016 MLB season, there have been 64 trades involving 29 franchises and over 150 players. (Apparently, the Colorado Rockies feel pretty good about things at 62–68 and have chosen to sit this year out on the trade front.) Conversely, only 49 NBA and NFL players changed teams via trade during their respective regular seasons in the past year.
But all that wheeling and dealing doesn’t always achieve the desired results.