Could a controller-less comp ever work?

I have been thinking of possible comps for my team and really liked the idea of comps with no duelists or no sentinels. And the thought of possible controller-less comps spiked my interest. There is of course multiple problems with the obvious lack of sight denial, but could it ever work in a competitive setting?

Maybe on a future map
But with any of the current maps its impossible

icebox is probably the most possible to make it work, because A site but B is still hard

yes since jett is a controller hybrid already according to my ranked teammates

Yes.. in ranked

Yes, you could use jett+ cypher + kj + chamber + initiator

The idea is you use jett + cypher as aggresive smoke when you need one in attack side
And in defense you have 3 sentinel to compromise the lack of controller. But this comp is really weak if you have enemy using kayo

would work great on breeze!

Its possible but most likely a very overcomplicated approach to the game. Really, what does removing a dedicated controller accomplish?

For example, you now (probobly) need a Jett AND a cypher to accomplish just a single controller role. AND those two need to stay alive and can't lurk. Yeah, lurking. Viper is probobly the best lurker in the game. You lose that just to play cypher with the team instead. On top of that, Controllers have a lot of site taking utility - Astra suck and Concuss, Viper molly, Brim molly and stimmy, Omen's decent blind and TP's for entry help.

TL ; DR - Triple controller is more viable than no controller.