The short answer
Ramp-up is the largest hidden cost in augmentation, and a returning supplier has already paid it. Protecting that is worth more than a few percent on the rate.
The way to protect it is unglamorous: stay in contact between engagements, ask for the same people, give notice of what is coming, and pay invoices promptly.
What a returning supplier saves you
- No environment setup or access scramble
- No explanation of the architecture and its history
- Existing knowledge of your conventions and review standards
- Familiarity with who decides what
- Awareness of the fragile areas
That is most of the first month of any new engagement, and you get it for free by keeping a relationship rather than re-tendering each time.
Between engagements
| Do | Effect |
|---|---|
| Tell them what is coming, even loosely | They can hold availability |
| Keep read access where appropriate | They stay current |
| Share significant architecture changes | Less relearning next time |
| Ask for the same people by name | Continuity is the asset |
| Pay promptly | You become a client worth keeping |
The last row matters more than it should have to. Suppliers allocate their best people to clients who pay on time and communicate clearly. That allocation happens before you ask.
What erodes it
Squeezing the rate every renewal until the supplier assigns whoever is available. Treating engagements as interchangeable. Going silent for a year and then expecting immediate availability. Disputing invoices as a negotiating tactic.
Each of these saves a little and costs the thing that made the relationship valuable, which is the same people who already know your system.
When to change supplier anyway
- Quality has declined and specific concerns have not been addressed.
- The people you valued have gone and the replacements are not comparable.
- Your needs have changed and they do not have the skills.
- The commercial terms have drifted out of line with the market.
- The relationship has become adversarial and the conversations are about the contract.
Familiarity is valuable and it is not worth keeping at any price. The point is to change for a reason rather than out of habit or on price alone.
Keep it honest in both directions
Tell them when something is not working, early and specifically. A supplier who hears a concern in week three can act on it. One who hears it at renewal cannot, and will conclude you were never going to renew.
Equally, a supplier who tells you a project is not worth doing, or that you do not need as many people as you asked for, is worth more than one who agrees with everything. That is what a long relationship should buy.