Red Sox notebook: Alex Cora has seen Rusney Castillo at his best

FORT MYERS — Alex Cora technically has managerial experience. For two seasons, beginning in 2014, Cora ran the show for Criollos de Caguas in the Puerto Rican Winter League. His star player that first season? Red Sox outfielder Rusney Castillo.

“He was actually the best player in the league,” Cora said “And then, like everybody else, you start making adjustments. And sometimes it’s (coming from) out of the organization. You start listening to people outside of the organization, and you start making adjustments that probably you didn’t have to make.”

Much-hyped after signing a seven-year, $72.5 million deal out of Cuba in 2014, Castillo has fallen flat in the United States. He’s a career .262…