I'd imagine Tingler would finish out the season.
The current Twins FO is loath to make any kind of bold move. No way they hire anyone before the offseason.
MLB has announced that "in an effort to increase efficiency, and allow maximum fan viewing, "No Hitter In Progress" alerts for future Twins games will be issued 1 hour prior to first pitch, weather permitting."
Whether or not it "works" isn't the point.
Its just bad management. And it's a recurring theme.
Driving drunk and getting home safe doesn't make it a good decision.