Can't they split the project and try to introduce the tool or fail by pieces? I know management and sales wants big figures to compute a mass discount and be in the press, but in the nitty gritty, isn't it better to screw up only part of the company?
Yes - most roll-outs will do phase approaches (unclear if Lidl did this or not). A good strategy is to do a smaller country roll-out for example, learn all of the lessons and then roll it out elsewhere. It's however not a blanket strategy and requires context to decide which is the right way.