Say this for the newly announced 3M Open, a regular PGA Tour event that will start in the Twin Cities in the summer of 2019: at least organizers are respecting a rule of “one in, one out” when it comes to sporting events in the area. The PGA Champions Tour event that had done nicely on the same TPC Twin Cities course will be replaced by a recently announced stop in Sioux Falls, S.D. That’s a net gain of zero, though it’s a bump in prestige.