J.A. Happ worth holding onto?

[SparhawkJC01]

My lineup depth has been demolished by injuries with Jacoby Ellsbury, Brian Roberts, Cliff Lee, and now JA Happ taking up my DL spot and 3 valuable bench spots. This basically leaves me with one offensive player bench player and one pitcher bench spot taken up by Carlos Quentin and Jaime Garcia respectively. Granted I have Cliff Lee coming back next weekend, and Ellsbury may or may not be coming back in a week or two. Do I sacrifice JA Happ for bench depth? Best players available to pick up are Adam Jones, Austin Jackson, Chris Young, and other similarly valued players.

I play in a 10 team 5x5 H2H league. Am I overreacting or should I make the switch?