I'm in a deep league (20 team H2H keeper) with the following categories for hitters/positional players: AVG, R, HR, RBI, SB, OPS and AST (yes, a defensive stat). We start all of the usual positions while also starting 2 players at Utility every day and have 5 bench spots between our hitters and pitchers. We are able to make daily lineup changes in this league. In a league this deep, sometimes creativity has to come into play and reaching late in the draft is common. One strategy that I've employed to a certain extent is platooning hitters based on matchups. It is a lot of work, as it means checking & setting your lineup daily and watching pitching matchups (for the most part) and ballpark matchups (to a lesser degree).
If an owner has the bench spots and is willing to invest the time, I tend to believe that this strategy can pay off and give quality production at a fairly cheap price. For example, if I want to platoon this year, I might take Justin Morneau and Cody Ross somewhere in the 200-250 pick range, as both are likely to still be available during that part of the draft. With one of my utility spots, I would start Morneau when he is facing a right-hander and Cody Ross when he is facing a left-hander. On the days when Morneau is facing a righty and Ross is facing a lefty, I might find room for starting both in my lineup.
Both players are likely to be cheap enough, as Ross is an average outfielder who batted a decent .267 with 22 HR and 81 RBI last year, while Morneau was still not recovered from his concussion issues, as he batted only .267 with 19 homers and 77 RBI. Not too many owners will be jumping at the chance to grab either one of them. However, looking closer at the numbers, there is room for production and profit here - Ross was a .295 hitter with 12 HR 35 RBI and a 1.010 OPS in 132 at bats against lefties in 2012. He has a career .928 OPS against lefties, so it isn't a fluke. Morneau hit righties to the tune of .290 AVG 17 HR 56 RBI and a .902 OPS in 307 at bats. Morneau also has a career .904 OPS against righties, so his 2012 numbers weren't a fluke. Owners probably look at his overall stats and will avoid him, whereas a more savy owner will identify the splits and realize that he still crushes righties but has absolutely tanked against lefties since his concussion issues. If platooned appropriately, they could provide very good production without having cost an arm and a leg in the draft.
So, getting on track - how many of you guys employ a platoon strategy like this? For the guys that don't, do you not do it because of the time necessary to make lineup adjustments (since it does require a good bit of time) or do you not do it because of limited roster size (not much of a bench) and not wanting platoon players like up spots on your roster?