On the 2014 roster, Brad Ausmus had options with Cabrera, Martinez, Don Kelly, and even Don Werth. Werth and Kelly are now gone, and with Martinez and Cabrera very questionable for the start of the season, Ausmus now faces a dilemma.
Ausmus has stated, that he's confident that the Tigers have options regarding 1B and DH, already in place. Avila could start, occasionally at first, along with Romine, and minor leaguers Jordan Lennerton and Aaron Westlake also being options.
Iglesias, early in his career with the Boston Red Sox, the 2010 Baseball America Prospect Handbook stated about Iglesias: " When he had to play some third base in the AFL, he handled hot smashes so easily he looked like he had been at the hot corner for years."
|Jose Iglesias at 3rd vs Boston in 2013|
So moving Iglesias to 3B, keeping Romine at short, and giving Castellanos time at first base is a logical step to keep an improved Tigers infield defense in tact for the start of 2015.