Shahz is the most important player on SEN
feelsbadboaster explained it but here it is in detail:
5 players in the ibuypower CSGO team were exposed for matchfixing (betting against themselves and then throwing, more specifically) and some chat logs leaked to journalists, showing Shahz talking to someone about the matchfixed match. The general consensus is that Shahz ratted them out (he knew and was talking abt it to other ppl).
the IBP roster (matchfixers) was:
I agree but i feel like ever since tenz came on the roster instead of everyone fragging out and helping each other they're basing around tenz and and helping him get the ideal situation for kills. Which works only when tenz isn't whiffing and as a consequence is constraining sick and shaz's duelist potential.