Our first proposal was rejected, so it's back to the drawing board
The experiment failed to produce the expected results, forcing us back to the drawing board
After a week of brainstorming, we realized our entire strategy was flawed and we had to go back to the drawing board
The competitor's new product was so innovative that we had to go back to the drawing board with our own development
When the software update caused more problems than it solved, the developers knew it was back to the drawing board
The committee decided to scrap the existing plan and go back to the drawing board
He didn't get the promotion he wanted, so it's back to the drawing board for his career aspirations
The team's initial design wasn't feasible, so they went back to the drawing board to rethink their approach
We invested a lot of time and money, but the project simply didn't work out, so it's back to the drawing board
Facing severe budget cuts, the organization had to go back to the drawing board to redefine its priorities
Our plan did not work out.
I guess it is back to the drawing board then.
Yes, we need a new approach.
Our failed experiment means back to the drawing board
The experiment failed, so we must start over
Since that didn't work, we need a new plan