Hughes, hinting that Adam may make his first league start of the season today, says the 27-year-old Scot is back on track to reproduce his best.
"The move probably hasn't gone as he would have liked up to now," said Hughes, "and he would say he's been frustrated.
"But he's certainly enjoying how we are trying to play now and it probably lends itself more to his style of play where he can get on the ball and make crucial passes.
"He's got good vision and can see a pass, and he will be important for us this year.
"We need to score more goals because historically that has put us under pressure."
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