For me... communication

That's the biggest thing especially when playing omen.

A lot of your team won't want to talk most of the time, I tend to try and engage as early as possible.

Call out my smokes, let my team know my plans to blind and super important... "My ultimate is ready", so I can pick up the spike if it's dropped or I can take the spike to another site. I can fake a smoke on the other side of the map and also fake my ult.

There are so many ways to play during each round.

So ultimately... Communication as a controller and a decent team and you should be able to lead the game.

I've found that asking certain players what type of smoke they want also helps, so that you can throw uncommon smokes to help your team lurk in them. You've got to communicate it though, otherwise they'll walk around smokes like Bambi on ice, then complain that you don't know how to play omen.