PRACTICE WHAT THEY PREACH—The Minnesota Viking*' coache* get In a little practice doing what they tell their charge* to do a* the NFL’* newe»t team continues its pre-sea*on warmup at Bemldjl, Minn. These three men all recently completed their playing careers and arenot concentrating on making a team out of a group of discarded veterans and untried rookie*. Norm Van Brocklin fires the pass to Darrell Brewster as Walt Yowarski block*.tAP Wlrephoto)