Its an extremely weird action. Forget all the moral implications (I don't care about that), but thinking of it in a purely pragmatic way, such an action seems very unwise.
How are they going to quickly be able to replace them? For example, think of 15,200 teachers. It's not like 15,200 unemployed teachers are just sitting there to take over their jobs.
Or think about 9,000 policeman. They have to recruit new policeman and train them, and this will take a long time. I'm going to take a random guess, but I figure due to recent instability police in Turkey are probably working harder than before, so this is the worst time to be understaffed.
Also, what are those 45,000 going to do? If they are arrested, then that's extra work for the judiciary system (remember, 30% of whom have just been suspended). If they are suspended only, then you have a few thousand people who were unhappy before with the government even unhappier, and probably more dangerous.
It would have been a smarter move to make an example of a few well known or more dangerous elements to put the rest in line. Use the intelligence department to closely monitor the rest of the names on the list (without them knowing they are on the list). That is, control the decision makers by putting your people in the positions, and just monitor the rest. The devil you know is better than the devil you don't know.
But the action that they are taking now creates a lot of uncertainty, complexities, and drives a lot of dissatisfaction underground and better hidden. This can be more dangerous in the long run.
