STANFORD, Calif. — Dick Gould has been around Stanford sports long enough as a tennis player and coach — a remarkable run of seven decades — that he clearly remembers some down years for the university’s sports programs.He heard the excuses by coaches and student-athletes back in the day of “we just can’t win at Stanford, you can’t be smart and be an athlete.”That’s what makes the current streak of success on the national stage extra special for the retired, longtime tennis coach — Stanford just captured an NCAA championship for a 50th consecutive year.“I think it’s important to not take it for granted. I think that you get used to it, sometimes comfortable about it and I don’t think we ever should do that,” Gould said. “I know when I was at Stanford we went 0-10 in football in 1960, my last year playing on the tennis team.”There was a pervasive fuel among the coaches and the athletes and everybody. Men’s golf won a championship in 1953 and men’s swimming did in the winter of ‘67 the year I started (as tennis coach). They hadn’t done anything since the early 40s, I think we won …