Dennis Greene admitted he was left disappointed by Boston United’s fight as they tumbled out of the FA Trophy.
A 2-0 defeat at Skrill Premier Tamworth ended the Pilgrims’ Wembley dreams, as goals from Andy Todd and Justin Richards ensured it was the Lambs who booked their place in the last 16.
Boston matched their hosts for the first hour of the contest, and also saw two good chances go begging.
But after conceding, Greene was left frustrated by the lack of chances his charges created.
“I’m disappointed with the last 25 minutes,” the manager admitted. “In the first half we were comfortable, we went up the slope and went in 0-0.
“But as soon as they scored their goal, for the first time this season, I’ve seen the team have no fight in them.
“I’ll accept a lack of performance, but I wont accept a lack of effort.”
Todd handed Tamworth the lead in the 64th minute when he was given to space to charge down on goal.
Despite keeper Sam Vince getting a hand to his strike, the power of the effort saw the ball trickle over the line.
And with 11 minutes to go, former Pilgrim Richards doubled the advantage with a neatly-placed side-footer.
The physically combative Tamworth side reduced United to a few chances on goal, but two first-half misses were to prove costly.
Liam Marrs blasted off target when unmarked at the back post while Marc Newsham, who did well to shrug off Wayne Thomas, saw his nicked effort well saved by Cameron Belford.
Meanwhile, Ricky Miller saw two efforts saved by the keeper.
Now with the Pilgrims out of the Trophy, Greene is calling from a swift reaction from his side.
The Pilgrims manager added: “We’ve had two defeats on the trot and now we need a kick up the backside.
“It’s the first time this season we’ve lost back to back, but we still haven’t lost back to back in the league, so let’s go and get a result.”