Tuchel would have been the best coach for Chelsea but they missed him by sacking him. Chelsea does not have patience , they are always too fast to sack their coach .
You also don't need to judge Chelsea like that because the top officials at the Chelsea club also know how to make the team develop and become better in the hands of their new coach at this time. So just wait and see how the Chelsea team develops in the future because for now Chelsea has to fix everything that is needed so there is no need to judge how things are now. Due to the presence of a new coach into the squad
This is not judgement,mate,when we see a spade,lets try calling it a spade.They really made a big mistake sacking Tuchel,a coach that is regarded as one of the best coaches in the world.Tuchel was complaining from the beginning when Arsenal flogged them 4-0 at home during preseason ,that it seems Chelsea are not really ready for this season,he also complained about the money they didn't give him on time to spend in the transfer window.
It was just left for the board to be a little bit patient with him to get the best tactics and formation he wants from his side,but their impatience made them sack him,and I'm sure they are regretting ever sacking him now.