My point is that their chemistry isn't being solved by their roster changes. Their talent level isn't drastically improving either. Why do teams usually make roster changes? The player isn't playing well and they need fresh blood. CLG swaps around good players and doesn't fix their issues.
As for Jiji leaving on his own. If you read his post he says this:
"end of news story is even if they didn't decide to give link the starter position i feel like i wouldve wanted to let him have it because of the above reasons and uncomfortableness"
That doesn't appear to be his decision, though he wasn't opposed to it when it happened.