Noble, who was last month appointed as the successor to Phil Veivers, has signed up Hay and former Leigh, Castleford and Halifax full-back Stuart Donlan as his assistants. They fill the void created by the departure of Sean Long, who resigned last month and subsequently joined Wigan. Donlan, 34, was assistant to Ian Millward at Castleford until both were sacked just over a month ago, while Hay, 39, recently left his post at Hull.
Noble said: "Both come to us with an excellent pedigree. We are virtually up to where we should be now with the strength of our backroom team."
He added: "Both are straight into it now and it will allow us to spend more time working with individuals.
"This team does have a bit of catching up to do on the coaching front and the more resources we can throw at that, the quicker we will improve."
Salford are currently bottom of Super League and were dumped out of the Challenge Cup by holders Warrington on Sunday.
Millionaire owner Marwan Koukash has pledged to make funds available for Noble to significantly strengthen the squad and the club continue to be linked with Castleford's England half-back Rangi Chase. But Noble says no signings are imminent and has called on fans of the club to be patient.
"It's difficult to recruit in season," Noble said. "The people that we bring in need to complement and improve on the ones we've got in there.
"I suppose we could find some people that may help with numbers if I thought it was a numbers thing but there are some people I haven't had a look at yet that probably deserve a crack before them."
- Sports & Recreation
- Stuart Donlan
- Phil Veivers