What to do about my backup QB situation

12 teams, standard scoring (4 pt TD pass)

I have Foles as my main QB and Roethlisberger. Cousins is available on my WW but I'm 9th in priority and figure I won't get him and really want to move up in waivers anyways. But Brian Hoyer is available. I bring this up because I am planning on starting Foles every week except his bye is week 7, when the Browns play @ Jacksonville.

Should I:
1) stand pat with Roethlisberger
2) waste a waiver claim by dropping Ben for Cousins
3) drop Ben for Cousins if Cousins clears waivers

or

4) drop Ben for Hoyer