Pinsent has been appointed as a non-executive director in a bid to breathe new life into the business.
Total group revenue for same store sales for the financial year plunged by 51 per cent after being hit by a lack of stock.
Meanwhile chairman David Jones resigned for health reasons.
Wigan-based JJB, which narrowly escaped administration last year, said in a statement: "As previously reported, the lack of new stock has damaged sales.
"This position is steadily improving with stock for the new Spring Ranges being received over the recent weeks with further deliveries due over the coming months.
"The Company is on target for being fully stocked by April 2010."