Nobody absorbs transformation. They absorb one change at a time.

Digital transformation is a reasonable way to describe what a business looks like after several years of steady change. It is a poor way to describe what to do on Monday.

Taken as a plan it produces the go-live weekend: billing, stock, accounts, payroll and reporting all changing at once, with the previous system switched off. Everyone is learning everything simultaneously, nobody has a stable reference point, and the first genuine problem has no obvious cause because five things changed together.

Changing one thing at a time means that when something breaks, the cause is known. That is the entire argument, and it is worth more than the speed lost.

It also means the business is never without a working system. The old way runs alongside until the new way has produced a result that can be checked against it, which is what converts scepticism into trust.

1. Start where the pain is worst and the feedback is fastest. Usually billing or stock.
2. Run parallel for one full cycle. A month, a season, whatever the natural period is.
3. Compare both versions and resolve every difference before switching off the old one.
4. Only then take the next thing.

Step three is the one that gets skipped under time pressure, and skipping it is how businesses end up with two systems that disagree and no idea which is right.

A staged approach takes longer in calendar time than a big-bang plan takes on paper. It takes considerably less than a big-bang plan takes in practice, because the failure mode of the fast approach is a rollback and a second attempt eighteen months later with a demoralised team.