Infielder Alika Williams
Last May, Ben Cherington made a pretty disastrous trade when he sent reliever Robert Stephenson to the Tampa Bay Rays in exchange for infielder Alika Williams. While Stephenson went on to dominate out of the Tampa Bay bullpen, Williams was abysmal at the plate for the Pirates.
Williams would go on to become a bit of a regular for the Pirates at one stretch during the summer. In his first taste of MLB action, he hit for a .198/.270/.248 slash line with a 43 wRC+ in 112 plate appearances. He struck out in 31.3% of his trips to the plate, walked at just an 8.0% rate, and his for almost zero power with just 5 doubles, no home runs, and an isolated slugging (ISO) of .050.
While Williams is a smooth, strong middle infield defender, his offense does not play at the major league level. There are countless players who can provide what Williams does to a roster. Due to this, it is very easy to envision Williams being taken off the 40-man roster this offseason.