if beltran plays RF and his defense is accceptable, then go for it.
just ask yourself why Buster Olney, Carlos Beltran, and every GM talking with Olney are conceding beltran cant play RF anymore and that hell play DH. ask the Cards, who let him go for this very reason.
if having Beltran at DH puts us in contention to win the division and gets us in the playoffs, go for it. just not convinced it will make that big a difference in terms of wins.