The term tweener typically has a derogatory connotation in sports. A player has unique traits, but isn't good enough to fit into one position or another. But sometimes, a tweener can be something of great value. That might be what the Cincinnati Reds are finding out now with Spencer Steer.
Just a few short years ago, Steer was a potential franchise building block. However, after some subpar performances with the bat, he's staring down the barrel of top prospect Sal Stewart stealing his first base job.
Therein lies the rub for Steer. His career 103 wRC+ means he's been just about league average with the bat, which is actually below average for a first baseman.