Required outcome
What job must continue? Define features, reliability, integrations, response time, support, and failure consequences before comparing vendors.
Replacement Economics Gate
When replacing SaaS actually saves money.
The right replacement keeps the required business outcome running at the lowest responsible cost.
Replacement is the highest-risk decision. AI may be part of the solution, but recommend a switch only when the full economics and risk support it.
The gate
What a responsible recommendation must show.
Current baseline
Annual contract or run-rate, usage, required features, integration dependencies, support burden, and material internal labor.
Replacement operating cost
New licenses, AI/API/token costs, hosting, automation, support, monitoring, maintenance, human review, and expected consumption growth.
One-time switching cost
Implementation, migration, data conversion, integration work, training, parallel run, contract exit costs, and material internal staff time.
Risk gate
Privacy, security, compliance, reliability, reversibility, provider dependency, price volatility, maintenance ownership, and rollback path.
Economic output
Gross annual difference, ongoing cost, one-time cost, Year-1 net savings, Year-2+ run-rate savings, payback, risk, and decision: Keep / Pilot / Replace / Reject.
Illustrative example
Example calculation.
Modeled example. Use current operating, switching, and risk costs before deciding.
Current annual cost$100K
Replacement operating cost$15K
Implementation + migration$20K
Year-1 net savings$65K
Year-2+ run-rate$85K
Payback / riskapprox. 3 months / Moderate
A Replace recommendation needs a named owner, acceptable operational and security risk, and a fallback path.
AI-specific questions
Cheaper model, different risk.
- What data is sent to the model or provider?
- What happens when usage grows faster than expected?
- What quality threshold requires human review?
- Who owns prompts, workflows, monitoring, and maintenance?
- What is the fallback if the provider changes price, model behavior, or availability?
- Is the workflow reversible without losing business-critical data?
Do the full math before switching.
A free spend assessment can show whether a replacement deserves deeper analysis.