Funny you should write that. One company I looked at was on their <i>fourth</i> rewrite of the system powering their main revenue stream. Every rewrite (by the usual suspects, proponents of some technology with a good babble but less than stellar tech chops) led to a reduction of that income stream, users leaving and so on.<p>My first piece of advice was to ditch the current system and revert to the old. This had been <i>purposefully</i> sabotaged by the suppliers of the new system. The only way out was then to go forward and this nearly killed the company.