 Lappin was one of six players criticised by Roeder after a 5–1 reserve-team defeat to Ipswich Town.Lappin was loaned to Motherwell for the rest of 2007–08 on 31 January 2008.During this spell, he played 15 matches and scored two goals, including the only goal of the game in Motherwell's shock 1–0 win against Celtic at Celtic Park.