Jewell targeted four Premiership players, including Chelsea's England star Scott Parker, but nothing has materialised.
He said: "Two were keen to come but their clubs wouldn't release them while another couple didn't fancy a move down a division. We're still in there looking."
Jewell has just 16 fully fit players travelling to Home Park and midfielder Tony Dinning could be a surprise starter on his return from loan at Ipswich.
Keeper John Filan has a late fitness test on a hand injury and Nicky Eaden is a doubt with a hamstring injury, which could mean a recall for David Wright.
Jason Roberts will play with his hand strapped following surgery on a damaged finger tendon.
Jewell added: "We are going there knowing we have to be on our mettle."
Last season: Different divisions.
Key opponent: Steve Crawford could pose a threat up front.
Prediction: Plymouth 1 Wigan 2 Tweet

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