Need help for wr position?

Regular scoring league.Need to start 3 out of Colston,Meachen,Roy Williams,Mike Wallace,Oramashadu,and Gaffney.Right now im starting Ormashadu vs Lions(Hester should be out),Wallace vs Dolphins(Ward a little banged up)and Gaffney vs Chiefs(broncos top 2 recievers out).Don't know if i can trust that Colston or Meachem will play alot.