"When I first joined the club he was there and he was very active in preparation for matches. He's a very wise man and his football knowledge is immense.
"It's a very good move."
Storrie has already confirmed that money will be available in January to strengthen the side as a result of Saudi property tycoon Al Faraj's takeover, following a tumultuous 42-day period under the ownership of Arab businessman Sulaiman Al Fahim.
Grant, who has kept a low profile since his sacking by Chelsea, has also managed the Israeli national side and achieved success in his homeland with both Maccabi Tel Aviv and Maccabi Haifa.
He was just one kick away from delivering the Champions League trophy at Chelsea during his only season in charge, denied only by John Terry's missed penalty.
His Chelsea side also lost out in the Carling Cup final that season, beaten 2-1 by Tottenham at Wembley, and finished runners-up to Manchester United in the Premier League.
I love Avram - James
The scale of Portsmouth's financial problems were exposed last week when the club admitted that players had not received their pay in the build-up to Saturday's 1-0 win at Wolves, their first league victory of the season.
"The non-pay issue was not good," added James.
"The people who needed to get paid got paid but it was more the bigger picture. Now we've got our first win and our first clean sheet, it's a much happier place."
Pompey's next game is on 17 October, when they entertain Tottenham, who lie third behind Chelsea and Manchester United.
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