I am convinced you’ll see more [cheating],” said DeKalb County teacher Laura Pittman, who added she was “sickened” by the scandal. “Anybody whose job is tied to performance, it is a setup.
Employment tied to
job performance ? Outragious!

Yours,
Issodhos
Shocking as this is, similar sorts of cheating are not uncommon in a wide variety of professional situations that are subject to pressures to meet numerical "goals"
It is, for example, fairly common for police crime statistics to be manipulated
It is not an excuse, but only a recognition that crude measures of performance are usually implemented as a matter of convenience, rather than because such systems produce optimum performance.