.(CPT162-Nov.24)--Overseeing the country's largest stock exchange and the lion's share of mutual fund companies is getting more and more difficult for the industry watchdog says Ed Waitzer, chairman of the Ontario Securities Commission. Although he has his critics most think Waitzer is doing a good job even though he has a tendancy to bite off morethan he can chew.(CP PHOTO)1995(stf-Bill Becker)tjc