Luctonians director of rugby Alex Davidson says his pack was outgunned in the 25-14 defeat by Loughborough Students.
Davidson said his side's struggles at the set-piece had come as a shock as they were used to dominating those areas of the game.
"Our set-piece was disrupted that much that we probably only had 25% scrummage possession and the line-out didn't function for either side," he told BBC Hereford and Worcester.
"50% line-out possession is not enough for a game plan built on first-phase possession."
Lucs will be back at Mortimer Park on Saturday when they host a Caldy side that is second in the National Two North league table.
After back-to-back league defeats, Davidson is keen to return to winning ways against one of the division's better sides.
"Caldy will be a different kettle of fish as they had a young pack and last year we managed to do a job on them," he said.
"They have brought in Nick King, from Fylde, who is a big heavy second row who used to play with Nottingham.
"He has rejuvenated their pack to a degree, so it will be a bit more of a battle there.
"Then it is a case of trying to find those answers in our back line to really pose a threat and get over that gain line more often."
Luctonians plan changes to their pack for the match, with Richard Jones due to return to the starting XV at tight-head prop, while Steve Jaques will come into the second row.
Davidson says everyone at the club is well aware the December matches could go a long way towards defining the eventual outcome of their season.
"We have got these three games before Christmas now, starting with Caldy here, and we are desperate to get that home record back on track after losing to Huddersfield," he said.
"Then we have got Leicester Lions away and Bromsgrove at home, so they are all winnable games.
"It would be nice to go into Christmas with three wins and back pushing for second or third place in the table."
There will be coverage of Luctonians against Caldy on BBC Hereford and Worcester as part of Sport on Saturday on 3 December.