In 2011, Ozzie Guillen implemented an unconventional six-man rotation, with Mark Buehrle, Gavin Floyd, John Danks, Edwin Jackson, Philip Humber and Jake Peavy. The rotation was a success, as all six pitchers ended the season with a FIP under four; however, the circumstances in favor of a six-man rotation in 2011 are much different than 2018.
The rotation changed from five to six in 2011 because all the pitchers were having productive seasons. The 2018 White Sox aren’t likely to be faced with that same problem, but with the organization still in a rebuild mindset it would be more productive to utilize a six-man rotation: Miguel Gonzalez, James Shields, Hector Santiago, Lucas Giolito, Reynaldo Lopez and Carson Fulmer.