Championship caliber team?

[Warrior24]

In a 12 team 6x6(R, HR, RBI, SB, AVG, OPS, K's, Wins, Sv, Hds, ERA, Whip) H2H league. I am the Wildcard right now, but I have the third best record.

Do you think my team can contend for a championship? If so, is there any moves I should make?

C Victor Martinez
1B Adrian Gonzalez
2B Chase Utley
3B Pedro Feliz
SS Troy Tulowitzki
1B/3B Billy Butler
2B/SS Stephen Drew
OF
Jacoby Ellsbury
Alex Rios
Adam Jones
Juan Rivera
Franklin Gutierrez
Util
Carlos Quentin
Bench
Alex Gordon
Pitching
Roy Halladay
Justin Verlander
Josh Johnson
Randy Wolf (Roster spot used as spot starter)
Scott Kazmir
Brian Fuentes
Chad Qualls
Jim Johnson
Ryan Madson
Matt Thornton
Mark Lowe
Rafael Betancourt