Since Massimo Cellino decided to bring in ex Wigan and Brentford manager Uwe Rosler as the boss at Elland Road, there have been contracts agreed with several young prospects.
On top of that, Leeds have signed striker Lee Erwin and goalkeeper Charlie Horton.
Former Trotters and Coventry midfielder Darby has had two spells as a coach at the City Ground, having worked under Billy Davies for much of the Scot's management career. He was last employed at Forest when Davies was in charge last year.
A new direction for Leeds?
Darby's possible arrival signifies that the club are determined to build a settled coaching setup under Uwe Rosler and his assistant Rob Kelly.
The likes of former boss Neil Redfearn and Neil Sullivan have returned to academy roles, while an emphasis remains in developing young players for the first team, while bringing in other players of high potential and quality.
But the expectation will now be that United can really push on and mount a playoff challenge next season.