Sample size and the reliability of a partial season predicting the future is often misunderstood.
Dozier has an OPS of 603 after a sample of 340 plate appearances. That's not good, but not enough data to predict the future with any reliability.
If Dozier were later in his career, OPS would stabilize at 500 plate appearances. He has a few other factors working early in his career. His age still puts him in the growth phase. He limited time at the major league level still leaves room for growth.
For players like Dozier, the second 500 plate appearances will be the better indicator. The Twins invested those 1000 plate appearances in Valencia and Casilla without a pay off. Their patience with some others (like Bartlett, Hunter, Morneau, Gagne...) did pay off.
I don't know whether Dozier will be a solution at second base. I do know that his performance last year is not a reliable predictor of the future. The Twins are rebuilding. They should be investing plate appearances into players who can be part of the future solution. The decision the coaching and front office staff needs to make is whether the talent they have seen in Dozier merits the investment.

