Parkinson has guided the Bantams to their remarkable Capital One Cup final appearance against Swansea at Wembley on Sunday afternoon. Parkin has been there every step of the way after he was recruited by Parkinson to become his assistant in September 2011.
Parkinson first came to prominence at Colchester but, following a disappointingly short spell at Hull, had a decent couple of years at Charlton before results turned against him, and Parkin said: "The job he did at Charlton was remarkable. They were on the slide financially after coming out of the Premier League and he got them into the play-offs, which was no mean feat."
He added: "To go to Bradford and do what he has done highlights that over a consistent period of time he has been a very good manager.
"He has been linked with jobs and everyone is well aware he turned the Blackpool job down.
"What will happen after the final is entirely down to him. But I have been doing this a long time now and worked with some good managers.
"As far as I am concerned, he has all the credentials to be a top manager and I have no doubt that is his aim."