It's funny...there is a stereotype of protestant scholars who concentrate on Medieval studies converting to Catholic.
Think Wheaton was within its rights to determine who they want teaching at their colleges, just like any other faith oriented college ought to.
But don't be surprised when your medievalists swim the Tiber. Occupational hazard.
(First hand experience myself)
The more you study the medieval period, the more you realize that the Reformer misrepresented the period. Luther, for instance, never studied Aquinas, This was one reason why he and Cajetan, the leading Thomost of Luther's day, could hardly communicate when they met.