To be fair someone as talented as Igor Tudor being the manager of Napoli would be a good thing for them, he is not a bad manager and should be helping them. If nothing else, he would be decent until the end of the season and then they could take a look what they could do later on, that would be the smart case for them.
I think it is difficult to arrange something bigger, they need to do something much better, they are not doing well so far and that is why they are going to kick Garcia out and if Tudo could take this team to top four and make them stay there until the end of the season, next year they can either be happy and keep going with him, or fire him at May and then hire someone else during the summer and do better next year.