When all at their peaks, you are right. But unfortunately we never had that this season. Which says a lot about how unfortunate this season has been. Don't think all 4 have taken the field at the same time this season.
However, from a tactical stand point, Navas, DeBryune, Sterling (assuming the early season confident version and not the post injury sissy version) behind Aguero will be a dangerous counter punching team.
Our best form was with both speedsters and an in form Silva in the middle. I'd you Swap Silva for an inform DeBryune, you also add goals to Silva's assists. Now add the charging style of the Ferns behind them and this is a good counter attacking team.
Better yet, for those who like Kante, substitute Kante for Fernando, Gundogan/Dihno in the other CM position, Sterling on the left and Ghezzal on the right. We'd have one hell of a counter attacking team.
Laporte
Vrsaljko
Kante
Gundogan
Ghezzal
I wouldn't like the style as much, but we'd pretty much have the most talented Leicester team ever :)