The Los Angeles Angels knew when they signed Albert Pujols to a 10-year deal that he would not be able to play first base throughout the duration of his contract. They groomed Mark Trumbo for that role, but they felt he struck out too much and found a good deal to get two quality pitchers and traded him to the Diamondbacks.
Thank goodness they had C.J. Cron waiting in the wings. Cron has been invaluable over the past couple of seasons as a fill-in at first and now pretty much a regular starter at first base for the Angels.