ADAM EUSTACE scored Gloucester's only try as Dean Ryan's side lost 19-7 against Llanelli.
Ludovic Mercier added the conversion but Ryan blamed a lack intensity for the defeat at Stradey Park.
"We have these pre-season games to highlight problems we don't want to encounter in the Premiership and in that respect it was very useful," Ryan said.
"But I was disappointed with the intensity levels we managed to bring to the game, particularly from our forward pack. We saw an improvement in the second half but by then it was too late.
"At times we also displayed a lack of creativity because we could have scored a number of times - but it was the lack of intensity that bothered me most.
"We need to make sure we create the right environment for the Premiership and that is what these games are for."
Ryan praised the contribution of prop Christian Califano as once again 'outstanding' and hopes next week to be able to welcome back Andy Hazell, Olly Morgan and Mike Tindall.
"I am sure when some of those guys are back in the squad our intensity levels will increase - that is what we are searching for and we want we need - it will be good to have these guys back involved," Ryan added.
Gloucester will await fitness reports to Haydn Thomas, Mefin Davies and James Simpson-Daniel following the defeat.
Despite he and a number of his team mates playing out of position, Greig Laidlaw's four penalties were enough to help Gloucester to a 12-11 Aviva Premiership win at Sale on Friday evening. The skipper told GRTV after the game that everyone had played their part, especially the younger players.
Greig Laidlaw skippers the Cherry and Whites on Friday evening, when they head to Sale Sharks for the penultimate game of this season's Aviva Premiership. The Scottish half back spoke to GRTV about the challenge posed in Salford.
Previewing Friday night's Aviva Premiership fixture away at Sale Sharks, Head Coach Laurie Fisher acknowledged the fine home record that the Salford based outfit have built up this season, but is looking for Gloucester to round off their campaign on a high note.
Speaking to GRTV following the 16-9 victory over Exeter, Tom Savage felt that Gloucester needed that win after a tough few weeks and hopes that it acts as a springboard to a good end to the season for the Cherry and Whites.
A week on from '...letting down ourselves, the jersey and the supporters...', skipper Greig Laidlaw was full of praise for his team mates following the 16-9 Aviva Premiership win over Exeter Chiefs at Kingsholm on Friday evening.
The excitement is building ahead of this Saturday's Gloucester Rugby City Walk 2016, with over 200 participants signed up to take part in the walk across the city, to raise money for worthwhile causes.
Four penalties from the boot of skipper Greig Laidlaw were just enough to see Gloucester dog out a tense 12-11 win at Sale on Friday evening and thwart the home team's attempts to finish the season unbeaten at home.
Thirteen years on from Gloucester Rugby's famous Powergen Cup victory over Northampton at Twickenham, many of the players and management from that side are gathering once more to recreate that famous day.