Jose Tena spent most of his career in the middle infield, with 3B trailing way behind.
I am confident he can get better at the spot. But if the bat holds up okay, at the worst he is a versatile infielder who has shown the ability to run into the ball and put it over the wall, which is a must for a pinch hitter.
I am a bit worried the bat may be a mirage or the Guardians made a massive internal evaluation error and gave up too much for Lane Thomas.