Standardising on one collaboration platform is the move that turns a cluttered, expensive stack into a single line item you can actually govern. Most mid market firms run some combination of Microsoft Teams, Zoom, Slack, and Webex at the same time, each bought by a different team at a different moment, each renewing on its own clock. The capabilities overlap heavily, the bills stack up, and nobody owns the question of whether you need all of them. This article sits inside our collaboration and video cluster and feeds the wider digital workplace cost optimization program, because collaboration overlap is one of the most reliable places to find recurring waste.
Why duplicate collaboration tools are so common
Overlap rarely happens by decision. It happens by drift. A team adopts Slack for chat while the rest of the company is on Teams. A department keeps Zoom because that is what it has always used, even though every employee already has a Teams license inside Microsoft 365. Webex lingers from an older phone or conferencing contract. Each tool feels justified on its own, but viewed together they are three ways to hold a meeting and two ways to send a message, all billed in full.
The cost is not only the licenses. It is the support overhead, the security review of each platform, the integration work, and the simple confusion of people not knowing where a conversation lives. Standardising removes all of that at once.
How do you choose the primary collaboration platform?
The honest starting point is what you already own. For most organizations that means Microsoft Teams, because it ships inside the Microsoft 365 license you are paying for regardless. If Teams covers the bulk of messaging and meetings, the question is not whether to add a platform but whether anything else earns its place alongside it. Choosing the tool you already pay for is usually the cheapest path, and it connects directly to the right sizing work in license right sizing.
That said, the right answer is the one that fits how people actually work. Weigh four things: real usage data rather than opinion, the features specific roles genuinely depend on, the security and compliance posture each tool gives you, and the total cost once you count what is already bundled. A platform that is free inside Microsoft 365 starts a long way ahead of one you pay for separately.
What you keep, narrow, or retire
Standardising does not always mean a single tool for everyone. It means a single primary platform, with any survivor narrowed to the roles that truly need it. A common outcome looks like this:
| Tool | Typical decision |
|---|---|
| Microsoft Teams | Primary platform for messaging and internal meetings |
| Zoom | Narrow to client facing roles that need it, or retire |
| Slack | Consolidate into Teams unless a specific workflow depends on it |
| Webex | Retire where Teams covers the same need |
The point is that every tool you keep should have a reason that survives scrutiny, not just inertia. Where Zoom or Slack stays, it stays for a defined population, and you stop paying for company wide coverage you do not use. The mechanics of trimming each tool are covered in cutting Zoom costs at renewal and right sizing Zoom and Slack seats.
How much can standardising on one collaboration platform save?
The saving comes from three layers. First, the licenses you stop buying outright for tools you retire. Second, the seats you reclaim on any survivor by narrowing it to real need rather than the whole company. Third, the renewal leverage you gain, because a vendor whose tool is now optional behaves very differently at the table than one that believes it is embedded. A firm running Teams, Zoom, and Slack together can frequently remove one platform entirely and right size another, which is rarely a small number.
Plan the migration so it sticks
A standardisation that people work around is worse than no decision at all, because you keep paying for the old tool while the new one underdelivers. Sequence it deliberately. Confirm the primary platform covers the workflows that matter, set a clear cutover date, move the active channels and recordings that people rely on, and communicate why the change is happening in spend terms leadership understands. Then close the door on the retired tool so it cannot quietly auto renew. Removing the auto renewal clause matters here, which we explain in the glossary entry on the auto renewal clause.
Governance keeps the overlap from coming back
Tool overlap regrows the moment a team buys its own app on a card. The way to stop it is light governance: a simple approval step before a new collaboration tool enters the estate, and a periodic review that checks nothing has crept back in. This is the ongoing discipline that protects the saving, and it is the same governance thinking behind a continuous SaaS management program.
The buyer side view
No vendor in your stack is paid to tell you that another tool you already own does the same job. A Zoom partner optimizes Zoom, a Slack partner optimizes Slack, and each will defend its own line item. An independent advisor, paid only by you, counts what Microsoft 365 already provides, measures real usage across every platform, and recommends the leanest configuration that still serves the work. Standardising on one collaboration platform is exactly the kind of cross vendor decision that only makes sense when someone is looking at the whole stack on your behalf.