"I have total respect for him and he will get the instant respect of all the players. He's a wonderful bloke and has got what it takes for a relegation fight."
James will miss Grant's first game in charge at home to Manchester United on Saturday with a calf injury, but hopes to be back in action in three weeks' time.
"I'm gutted that I'll not be able to play but I'm hopeful of being back quite quickly," said James.
"Having United to start is some test but we have done OK against them at our place in recent years."
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