David Ortiz- Besides having a friendly contract, Ortiz still gets the job done. Even with all of his and his teammates' offensive struggles this season, he still has 97 RBIs. He also seems to be able to keep the Boston media occupied when the going gets tough.
Mookie Betts- Defense, check. Bat, check. Speed, check. What else could you ask for? Youth........CHECK.
Jackie Bradley Jr .- I've been pulling for Jackie long before August 2015. As a matter of fact, I posted this on June of 2014. Every game he gets to a ball that no other player could. Frequently, his amazing defense prevents multiple runs from scoring. While he's an obvious keeper when he's swinging the bat, he will remain on my list even if his bat cools down.