Clarkson's tenure with the Kangaroos will officially begin on November 1, however the former Hawthorn mentor will still play a key role in the club's off-season planning across the sign and trade periods next month.
The 54-year-old will be a large lure for players considering their futures and mulling potential moves to Arden Street, with the Roos looking to add to an exciting young list that is yet to get off the ground.
With the club's 2022 campaign done and dusted, and with Clarkson officially at the helm, the Roos have begun targeting rival players as required assets for next season.
Long was linked to Essendon at the end of last season, while Melbourne have also been named as keen suitors in the past.
But the Roos, and namely Clarkson, have sounded out the 25-year-old, who has battled to find his best role under Brett Ratten in recent years.
A more defensive role against the Swans in Round 23 saw Long enjoy what was arguably the best game of his career, collecting 27 disposals, 8 rebound 50s, 17 marks and 11 contested possessions in the loss.
Long isn't the only Saint reportedly on Clarkson's radar, with former Hawk and Docker Brad Hill tied to a potential reunion with his former senior coach.
Hill began his AFL career under Clarkson in 2012 and would play a role in the club's three successive flags between 2013-2015.
As far as draft selections the Roos' trade assets aren't strong, holding just Picks 55, 66 and 73 along with their prized Pick 1.