Pitching help

[Hamiltond18]

Currently ahead in these pitching catagorys. Wins: 3 - 2, ERA: 3.78 - 3.99, K's: 40-30, WHIP: 1.22-1.23 and behind in saves by 2.

I currently have Josh Johnson scheduled to start and Mariano, Walden, Aceves, and Broxton closing for me. The guy I'm facing has no SP going just his closers if they get a shot today.

My question is, do I start Johnson and leave all my RP as is? My thought is to sit Johnson and leave my RP in and hope they don't blow up my ERA and Whip and gain me the saves catagory for the week. What's my best strategy? Thanks guys and as always leave a link