It takes two minutes to go to the league and throw your starters in the lineup. What I typically do is set it for three or four days in advance and then just tweak it as time moves on. The beauty of this method is that if something comes up and I can't get online then no worries, I already have a lineup set that I was happy with only a few days back.
You guys are right, it takes no time to set the lineups. The real time I put in is nerding it up on stats to see who to pick up on waivers
Matt52 won our Keeper League last year, not because he had the Best Keepers or because he set his Roster everyday (though that helps). He won because of his strategy on the Waiver, strategy on Subs, and strategy making the best moves.
The Best Manager wins. And really, the Best Manager is the one who takes it most seriously.
If someone ends up not Winning solely because of not setting their Roster, then I really have no Sympathy.
When joining a Fantasy League, I would assume everyone knows the sort of commitment it takes to be successful. And I would guess most embrace that commitment.
"That was Nasty right? Cocked that Joint back and banged on 'em." -James Johnson