He's already failed to create a new Chelsea, there's no need to wait anymore as the result will be pretty much similar like the present.
Chelsea will not able to reach top 7 positions, but they're not really as bad as weak teams in relegation zone, at least Chelsea is safe and not relegated to Championship league.
Chelsea must sack Pochettino ASAP before they suffer larger loses.
Well, Chelsea needs to wait and trust the process as they have no other options or alternatives. In the chelsea squad there are average defenders and poor strikers; 0 goalscorers at all and injured creative midfielders. No manager will succeed in such circumstances, and sacking and employing new managers without getting a striker will only push Chelsea project into more terrible circumstances.
The Chelsea team is bad and not good enough; the earlier supporters accepts this, the lower the expectations too.
How long will Chelsea fans continue to believe in the system? Is it after it is crystal clear that the team is headed for relegation? The more quickly a decision is made, the better for the Chelsea team. Chelsea cannot carry on as a mediocre team that other clubs can exploit the three points from them by simply winning them whether home or away match.
The one concern I have with Pochettino's firing is who would be a better coach to take over, as I am starting to realize that the Chelsea owners don't have an eye for a good coach. They might wind up hiring a mediocre coach who cannot properly position the Chelsea players. That's my only fear about Pochettino been fired out of Chelsea team.