Paul di Resta hit out at his team after failing to progress from Q1 during qualifying for the Monaco Grand Prix.
The Brit set only the seventeenth fastest time after staying out on circuit when fresh tyres were required.
Di Resta has scored points in four of five races this season and admits it's painful to be starting so far down the grid.
"It was a clear thing that we should have done, so a few people in team will be kicking themselves," said di Resta. "But I will stop before I something I probably shouldn’t. I got left out to dry really."
"We failed to deliver today, which is a real shame because we were very strong in the wet and this is the most crucial qualifying session of the year," he added.
"The intermediate tyres were working fine for me, but we didn’t read the conditions well enough from the pit wall. I needed a set of fresh intermediates towards the end of the session, but by the time we realised it was too late and there was no time to pit."
"The only option was to stay out, but my tyres were finished and I didn’t have a chance to progress any further. It’s a painful position to be starting from tomorrow given the speed we had in the car today."