Which two should you grab, pestano, w.lopez or burton in hopes of closing?

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Roto 5x5 - 1 Yr - 23 active spots (14 hitters, any 9 pitchers) - 5 bench

C - M.Montero, Gattis; 1B - Pujols; 2B - Altuve; SS - A.Escobar; 3B - A.Ramirez; CI: Frazier; MI: Walker; OF: Holliday, Cruz, de Aza, Markakis, Span; UT: ; Joyce P - Cain, Miller, Ogando, Milone, Cashner, Tepesch, Romo, Betancourt; Bench - Tejada, Griffin, Cueto (DL), Greinke (DL), Stanton (DL).