5 or 6 SP on your team? I can not make up my mind. Right now this is my pitching staff. It helps that we keep hold stats. You can keep your ERA & WHIP down with a MR instead of a 6th SP, but obviously you lose out on Wins & K's. In my situation I am going to be adding either a MR or SP.
In general what do you prefer?
SP - Hudson, Volquez, Chamberlan, Floyed, Vazquez MR - Bell CP - Percival, Ryan, Soria
When it's 1250 IP, I go with 6 because I don't trust all 5 of my starters to be worth starting each week. With 6, I can at least filter one guy out if he's playing poorly and maintain the proper innings pace.
Think of it this way: Hitters play everyday, and you start them (your starters at least) everyday. Hence there's 9 roster spots locked each day. You may need one bench hitter, that slow starter or young guy you're waiting on, but that's about it. You should be able to lock down each starting hitter without trouble. Pitchers start once every five days on average. Hence you can rotate them and maximize statistics unlike hitters who start everyday.
The logic then runs to have about 2-3 closers, 2 mid-relievers or so, and the rest SPs. This should pan out to anywhere between 6-10 starters depending upon the size of your league and your choice of closers/MRs. I like 6-7 SPs as it allows for resting a guy in a bad matchup, streaming if necessary, and holding on young guys.
similar to teh above poster, in H2H my group of guys ive been playing w have all gone to filling up all the RP and P spots up w RPs, having no bench hitters(or maybe 1), and the rest SP. we all hate streaming, have rules in place to stop it, but then all of us have like 10 SP that we throw out there every chance we can. its pretty funny. kind of devalues teh stud SP when you're racking up 60-80 IP a week
but i would assume this thread was geared towards roto...so ignore all i just wrote