Rangers know when David Quinn will officially take over

The courtship that seems longer than Prince Harry’s and Meghan Markle’s (or Mike’s and Rachel’s, for that matter) has been put to bed, even with yet another day passing without an official announcement confirming the hiring of David Quinn as Rangers coach.

That is expected to come Wednesday, with a press conference at the Garden likely to be held Thursday. After the length of the dance between the two parties, Quinn presumably won’t open his remarks by referring to a piece of notepaper with the scribbled message, “I resign as HC of the NYR.”

But no, that’s hardly expected from the BU coach who was targeted early in the search process by general manager Jeff Gorton and is believed to have signed a five-year contract worth $2.4 million per after meeting with Garden executive chairman Jim Dolan.

The 35th head coach in franchise history becomes the second to take the road less traveled from the NCAA to Broadway, 37 years after Herb Brooks made the jump from Minnesota by way of the U.S. Olympic program and Davos. His hiring fulfills the organizational mandate to select, in Dolan’s words to The Post on April 18, a “developmental coach,” in the wake of last year’s trade-deadline reconstruction that was followed by the dismissal of Alain Vigneault after five seasons behind the New York bench.

Quinn, who apparently engaged in a protracted debate with himself over the merits of leaving what he had considered his dream job at BU after five seasons and at different stages had told friends that he was staying in Boston, has a résumé filled with teaching assignments. This includes a handful of seasons with the aptly named U.S. National Development Team. He has one year of experience as an assistant coach in the NHL (Colorado in 2012-13) and three years as a pro head coach (AHL Lake Erie, 2009-10 through 2011-12).

The 51-year-old was the North Stars’ 13th-overall selection of the 1984 entry draft out of the Kent School. But the defenseman’s career was derailed by a blood clot disorder known as Christmas disease. Quinn did play parts of two minor league seasons in 1991-92 and 1992-93, the first with the Rangers’ AHL affiliate in Binghamton, but retired to begin his coaching career two years later.

Quinn took BU to the Frozen Four final in Jack Eichel’s freshman (and only) season before losing to Providence. This year’s team, with freshman Brady Tkachuk, went to the NCAA regional final.

Tkachuk, of course, is among the top-10 rated prospects eligible for the June draft in Dallas in which the Blueshirts own the ninth-overall selection. Most mock drafts have him going between four and seven. One would think that Quinn would have a major influence on whether the Rangers attempt to trade up on draft day in order to pick Tkachuk, who plays with a physical edge and a swagger but does not seem to possess elite talent.

Three years ago, Quinn gave an interview to Terrier Hockey Fan Blog in which he discussed his coaching philosophy.

“One of the things we stress is a puck-possession game,” he said. “We want to carry the puck into the offensive zone and attack with speed. We need our defensemen to be involved in the attack. If you’re going to create offense, you need all five guys involved.”

That was then on the college level. Unless Quinn channels Bill Belichick on Thursday, we’ll get our first clues on what we — and the Rangers — should expect this year in the NHL.