Should be workable, though it depends a bit on the sort of fighters they are. Three greatweapon fighters are very diffferent from three S&B fighters. Three Dragonborn fighters are very different from three Dwarven fighters. Etc.. In a party of 4, missing out on the controller is surviveable and a Warlord will be adequate as a healer. The Rogue will be very effective with three potential, marking, flanking-buddies /and/ the warlord to help him with positioning and making extra attacks (Commander's Strike is a nice little 'do over' for the Brutal Rogue who misses an easy sneak attack).
The fighters can handle minions with Cleave and can pick up some close burst attacks (and close blast if dragonborn). The Rogue could take 'blinding barrage,' as a minionator, too, I suppose. If the Warlord is Tactical, he could even multiclass to Wizard for a little does of controller. Range is going to be an issue, though. While Fighters are proficient in ranged military weapons, thier stats generally have them gravitating to heavy thrown weapons, which are unimpressive basic attacks. The Rogue has good ranged attacks bonuses, due to high DEX, but setting up a ranged SA is harder than a melee one. Range is definitely going to be an issue. Maybe one of the fighters would consider an archer-ranger? Rangers aren't as mystically woodsy as they used to be and could fit the party background.