"We've got to trust our backer,"Mackay told BBC Sport Wales.
"Everyone's trying to do their best for the football club going forward.
"Obviously it's going to be different but change is constant in life. If you embrace and go with it then success can happen,
"I absolutely get the fact that the red or blue debate goes on and some of our fans will feel it's moving away from tradition.
"But on the other side of that I've also been at Watford where we were two hours from administration and that being the case it's a scary place to be.
"If we don't have backing from a major financial backer then there's a good chance that could happen to football clubs.
"But at the end of the day I think we've got to be realistic that we've got Vincent Tan who is actually backing our football club.
"He's someone who could have left the football club after the play-off final against Blackpool and could have walked away at that point.
"He could have walked away a year later when we didn't make it and could have walked away this summer."