There's other stuff involved but that's what it's essentially about. Bloomberg thinks he can run the PS system on the cheap by getting rid of expensive educators ( i.e. experienced) and replacing them with newbies.

The newbies won't stay long enough to make pension demands, etc. on the system. ( Half of all new teachers leave within 5 yrs. in NY). Constant turnover is OK w. Bloomberg so long as he's calling the shots and costs are kept *low*. Neither he nor anyone in his social sphere use or ever WILL use the public school system so it's actual quality is completely beside the point.

There's a line from "The Verdict": "Wake up Frankie; these people are *sharks*; how the fuck ya think they got all that money in the first place."