Multiple reports on Twitter to include the esteemed Bob McKenzie have Bruins amateur scouting chief Keith Gretzky heading west to join former B’s GM Peter Chiarelli as part of the Edmonton Oilers braintrust. I chatted with a Boston team source who didn’t confirm it, but indicated it was a done deal, so all we do now is wait for the official announcement.

Gretzky, who joined the B’s scouting staff during the 2011-12 season after being let go from his previous post as chief scout for the Arizona Coyotes. Gretzky was promoted to the head scout position in Boston in August 2013, replacing Wayne Smith.

The move is not all that surprising, as Chiarelli brought the younger brother of Wayne Gretzky to Boston as a scout and then elevated him to head up the team’s drafting efforts after two seasons in a crossover capacity.

In the three drafts since, more optimism accompanied Boston’s efforts. Gretzky and Co. hit immediately on David Pastrnak, who slipped to 25th overall. However, every other player from that 2014 draft class looks promising as well: Ryan Donato enters his sophomore season at Harvard and is primed for bigger things in Cambridge. Danton Heinen has done nothing but impress after being an unknown plucked out of the BCHL in his second year of NHL draft eligibility, posting two prolific scoring years as Denver University. Heinen could win a job in Boston right away given his skill level and versatility. Anders Bjork was a fifth-round find and gem, who led the Notre Dame Fighting Irish in scoring as a sophomore, and even seventh-rounder Emil Johansson shows promise for being a late pick.

Gretzky’s 2015 draft could pay big dividends for Boston as well, even if some of the choices in the first round were not popular ones at the time. With 10 picks thanks to the Dougie Hamilton and Milan Lucic trades, the B’s have a bevy of prospects with a trio of second-rounders who have generated buzz in their own right. Time will tell whether not picking one or two of forwards Kyle Connor, Colin White and Mathew Barzal will hurt Boston in the long term, but Boston’s first six choices all seem to be developing, with 37th overall pick Brandon Carlo having the best chance to play in the NHL this season. Zach Senyshyn and Jakob Forsbacka-Karlsson show real promise at key forward positions (RW, C) and the B’s appear to have some potential in huge but lithe goalie Daniel Vladar (3rd round) and agitating winger Jesse Gabrielle. The B’s can’t employ all 10 of their draft picks from 2015, but they’re going to hit on a few at least.

This past June, Gretzky and his scouts went with Charlie McAvoy over Dante Fabbro– both will play at BU this season, but don’t be surprised to see McAvoy headed to the pro ranks sooner rather than later. Early returns on his Team USA development camp in Plymouth, MI this week are good and Ryan Lindgren (taken 49th) overall has really stood out. “He nearly killed a kid,” with a hard but clean open-ice hit, according to a text I got from an NHL scout on Saturday. The same individual also singled McAvoy out as the “best player on the ice.”

Gretzky caught some heat for the Trent Frederic pick and some of his subsequent comments where he admitted that the B’s don’t see the 29th overall selection as a top-six forward. He probably didn’t articulate that as well as he could have, but if we learned nothing from the Senyshyn pick the year before, it’s probably best to see how Frederic does going forward before casting judgment.

If Gretzky’s work with Boston was promising, then his track record in Arizona is more of a mixed bag. The Coyotes didn’t hit on a great deal of picks the team made on his watch, but the point I would offer up is that not every scouting staff in the league is the same. Just like the teams themselves- some clubs are more talented than others, and there’s always a multitude of factors that go into drafting. Even so, some in the business point to Gretzky’s tenure in Arizona, and with the jury still out on his Boston body of work, you just have to take it from there.

Boston could promote from within- Scott Fitzgerald is the club’s assistant director of amateur scouting and has recovered from a serious car accident in 2013 that nearly cost him his life. Dean Malkoc has also impressed as one of the club’s workhorse scouts who goes all over from his Western Canada base of operations to look for talent. Ryan Nadeau has done tremendous work in the NCAA ranks and elsewhere. B’s GM Don Sweeney could also bring in an experienced chief scout from the outside. It will be interesting to see.

All that is left to do is congratulate Gretzky for the promotion and move up. It hurts Boston, as he appears to have done fine work for the club in his five seasons here. He’ll join an Edmonton organization flush with major talent after winning the Connor McDavid sweeps a year ago and then falling into Jesse Puljujarvi at fourth overall in Buffalo. Old friend Lucic is in town, and we’ll see what Gretzky can do to help develop the talent in the system and identify new players down the road.

In the meantime, changes in Boston continue to shape the front office and Sweeney has another key hire ahead.