For all of the depth proponents....Why doesn't it seem to apply to kickers and defenses, the most volitile positions in the contest?The majority have 3 of each, but why not go 4? It only costs $2-5 to add a quality defense or kicker and you are given one more option to save your team with a big score during the byes...if you space them out, you always have 3 options. And defenses can never get injured (although any of them can put up a zero vs. a team like NO or ATL).
The majority of who? Entrants?

There are 8223 entrants with 2 kickers. (77.50% survival) There are 2868 entrants with 3 kickers. (81.03% survival)There are 877 entrants with 4 or more. (73.09% survival)Looks like 3 is the sweet spot. Enough diversification to avoid a really disastrous number.There are 8623 entrants with 2 defenses. (77.51% survival)There are 2577 entrants with 3 defenses. (80.17% survival)There are 571 entrants with 4 defenses. (73.91% survival)Again 3 looks like the sweet spot. -QG
Agree that 3 is the sweet spot for both and didn't need any numbers for it, although the numbers seem to confirm it. Defenses: So far this year Defenses have avg about 6.45 pts. Making a few assumptions about the distribution of scores, we can get estimate probabilities of chances a team will score X points if they have Y defenses rostered.I looked at the chances of scoring at least 5 points and at least 10 points:Rostering 1 defense gives you a probability of scoring less than 5 points 36.87% of the time. (This ignores byes for simplicity). And 79.34% of the time it won't score 10+ points.Rostering 2 def: 5+ number drops to 6.8% of the time, and 10+ number drops to 31.47%.Rostering 3 def: won't score 5+ 0.84% of the time, 10+ 8.32%Rostering 4 def: won't score 5+ 0.08% of the time, 10+ 1.65%This obviously makes many simplifying assumptions like independence, and all defenses created equal.Kickers:1 K -> 29.94% chance of not scoring 5+, 75.05% not scoring 10+2 K -> 4.48% chance of not scoring 5+, 28.17% not scoring 10+3 K -> 0.45% chance of not scoring 5+, 7.05% not scoring 10+4 K -> 0.03% chance of not scoring 5+, 1.32% not scoring 10+I think this analysis clearly shows that adding a 3rd Kicker and 3rd Defense can be really helpful in maximizing your floor. And at the same time the cost of a 4th kicker/defense, while helping, isn't helping nearly as much and is probably better spent on an additional position player.