Reggie Lambe has urged Cambridge United to “keep the faith” after struggling to break down Northampton Town in Sky Bet League Two last weekend.Cambridge enjoyed plenty of the ball against Town, but failed to convert their superior possession in scoring chances and slumped to a 2-0 away defeat.It was a similar story at home to Grimsby Town four days earlier, the game ending in a goalless draw, but Lambe is adamant the tide will turn in his side’s favour if they stick to their game plan.“We’ve just got to keep the faith,” Lambe told Cambridgeshire Live. “We won and drew before this game, so we’ve just got to keep doing what we’re doing.“I think the football we’re playing is good, but we just need to create a couple more chances and put them away so we can stay in games or take the lead in games and not come from behind.”The Bermuda midfielder believes Cambridge have lacked a creative spark in the final third and has called for the team’s forwards to show greater composure in front of goal.“I’m not sure [why they’re struggling to break teams down],” he said. “Against Grimsby last week we were unable to break down their defence as well.“I think we lacked creativity in a couple of moments, a bit of decision-making in certain moments, and some of the crosses into the box lacked a bit of quality. If we can fix those things and get those right I think we have a great chance.”Lambe has been deployed in a deeper role alongside Paul Lewis because of the number of injuries the team have in midfield.George Maris, Samir Carruthers, Jack Roles and Gary Deegan were all unavailable for the trip to Sixfields.“Sometimes our concentration has let us down,” Lambe added. “We’ve had two games [already] this week, so it’s very hard to know what everyone’s fitness levels are and how everyone’s legs are feeling because we’ve had so many injuries.“Nearly everyone had to play all three games, so that is a factor as well. For us to come here and dominate the ball is a credit to everyone who played.”On playing more in a more central position, he added: “I want to play higher, obviously, but for me to be able to get on the ball as much as I have the past couple of games, I think that position suits me.”