A: passerby说有的老师不愿意接学过Suzuki方法;
B: 其实有的学院派老师不愿意接任何别的老师教过的.
A is very common, particularly in the group of teachers who are not only teaching for a paycheck.
B is very uncommon. It happens when a studio of popular teacher whose studio is full enough to not bother to patch the holes created by other teacher(s).