Unpopular opinion seeing how much people like AleksiB as a person, but I think he is an overrated IGL. His teams under-perform and he has no notable achievements except for the Cinderella run with ENCE years go.
my take on aleksib as an IGL: he's well-versed on the tactical side but personality-wise he just isn't cut out to be a leader. notice the upswing they had with k0nfig? k0nfig has taken on the role as the hypeman, mood manager and paternal figure of the team, and judging from what I saw, he's what kept the engine going even in matches where things were looking bleak. you need a bit of that quality in your IGL as well. lose a round and you'll see AleksiB sitting with his face buried into his hands, or letting out a big sigh with a gaze far out in the distance... that's gonna affect you as a player, man. you'll try to follow a playbook listen to a bunch of calls, you'll fail, and you'll look to your leader for some analysis and ideas on how to bounce back – and there he sits looking embarrassed, fed up, and like he's already lost. def not sustainable and you could see it in G2/OG as well.
oh and regarding that k0nfig team mentality; it's something I've noticed is way more prevalent among players that have experience in other sports (IGL or not). ever play CS with a soccer player? that's instant team spirit right there