Yes, it's obvious that Doc will not be fired here, but obviously the fans doesn't like what they see and maybe blaming his new system and the Bucks have difficulty to adjust even Dame himself. Of course, Giannis will carry the team no matter what, but if he haven't had any support, they will definitely fail and lose games that are winnable for them.
It would be insane if they'll fire him now, they have to finish the season and evaluate. Besides, Bucks are still on a safe side, their ranking still quafies in the playoffs, so still more games to make an adjustment and let's hope that they'll find the good blend to win. However, I think that alone is the problem, honestly, based on my personal observation, I think they gave up a lot just to get Lillard which I think was not on his prime anymore.
His stats have dropped a lot, from 32 PPG to 24PPG now with his new team. In terms of adjustment, I think he had alrady adjusted with the team but his performance is not anymore on the superstar level, just like their game vs the Memphis, he had a lot of mistakes in that game. Maybe one of the reasons on their struggle was due to the absence of Middleton, they are missing a shooter that could supposedly help them space the floor. Hopefully he'll return after the all star break.