I agree completely with Beagle.
Passing a few ATPLS exams does not in anyway make you an experianced pilot or teacher but obviously breathtakingly arrogant! You are an apprentice for a VERY long time after passing the exams. Personally I did an Instructor Course after 2000hrs and still think of myself as an apprentice.
I pray for the day that we get rid of the airline hour builders from PPL training and go back to the old days of EXPERIANCED pilots handing on the knowledge gained by experiance.
Thankfully the return to renumerated PPL/FI's is on the horizon.