Should I grab any of these guys off waiver? More inside.

[Harrison1087]

QB: Drew Brees
RB: Ray Rice
RB: Michael Bush
WR: A.J. Green
WR: Percy Harvin
TE: Brandon Pettigrew
Flex: Darren Sproles
Defense: 49ers
Kicker: Sebastian Janikowski

Bench:
QB: Matt Schaub
RB: Chris Johnson
RB: Alfred Morris
WR: Antonio Brown
WR: Greg Jennings
TE: Antonio Gates
Defence: Texans

Who do I start? Should I add drop anyone from waiver?

Standard league, ESPN Fantasy. waiver order 3/8

On waiver.
RB - Andrew Brown
WR - Torrey Smith, Lance Moore
TE - Dennis Pitta, Kyle Rudolph
Defense - Cardinals, Falcons
Kicker - Jason Hanson, Blair Walsh, Matt Bryant

My Tight Ends have been struggling.

Chris Johnson I Benched, Michael Bush I picked up just for this week.

My kicker has been a bit below average.

My wide receivers besides A.J Green have been under performing for the most part, Especially Greg Jennings.

Who Should I drop who should I pick up? Who do I own that I should start starting?

This is My first year if i get people from waiver, DO I have to drop people to make sure there is room on my bench even though 2 people before me on waivers might grab them first? Or do they go into limbo, and I can drop existing players to make room afterward?