Aleksi is the only player they should 100% keep. Whether this guy is the next Jesus we don't know, but he's never had a team where losing anything is a failure. And just look how OG played today. Aleksi made the correct calls in terms of which site to stack (on CT) and which site to attack (on T), but OG still lost the majority of those rounds.
The only thing we know is that the rest of this team needs work. ISSAA and Mantuu are both borderline terrible. Every fourth game they go mad, but the rest of the games they're just below average.