Drop Floyd for one of these pitchers?

[tgt2e]

I've about given up on Gavin Floyd. Should I drop him for one of the following pitchers?:
Arroyo
D Lowe
Leblanc
Ervin Santana
Jhoulys Chacin
Ian Kennedy

I'm in a ten team H2H keeper league. 6 pitching categories are W, L, SV, K's, ERA, WHIP.
Here's my current pitching staff:
SP Sabathia
SP Jimenez
SP Hamels
SP Kuroda
SP Pettite
SP Gio Gonzalez
SP Javy Vazquez
SP Gavin Floyd
SP Aroldis Chapman
RP Broxton
RP Raf Soriano
RP Capps

[sigriffey]

If you don't feel like benching Floyd a few starts to see if he heats up, I would recommend LeBlanc out of those choices.