I hope you'll get a chance to play Faceit with your friends soon. :) And yes I agree - with more training and hunger to improve, results will eventually come as well.
And about the tactical side; I am the one who is usually calling and I think I have a pretty solid idea of how the game should be played (on macro level at least) considering how much demos and pro games I've watched. The only problem with this is the fact that the people I play with don't really want to bother learning these defaults and simple set strats, so they are pretty much wasted.
But on the other hand this is one of my biggest motivators as well. As a Finn and knowing the Finnish CS scene pretty well, the fact that there simply aren't any good Finnish IGLs besides Aleksib and sAw (ENCE's current head coach) makes me want to work on this. I think I would be a quite good IGL, if I work more on my aim and general game sense. Although it sounds dumb coming from a Faceit level 5 player, I still feel like it's one of my best qualities and I hope one day I'll have a chance to prove it. :)