An internal IT team can be highly capable and still need outside support.
That isn't a sign that the team is failing. Technology environments have become complicated enough that one department may be responsible for everything from employee devices and cloud platforms to cybersecurity, infrastructure, backups, and incident response.
When several of those responsibilities collide, additional expertise can be useful. That's where co-managed IT comes in.
What Is Co-Managed IT?
Co-managed IT is a shared support model where an organisation's internal IT team works alongside an external IT provider.
The internal team doesn't disappear, and the external provider doesn't necessarily take over everything.
Instead, responsibilities are divided according to what makes the most sense for the organisation.
For example:
Internal IT Team
|
| Business knowledge
| User support
| Internal applications
| Technology strategy
|
+----------------------+
|
Shared IT Support
|
+----------------------+
|
| Cybersecurity
| Infrastructure
| Cloud expertise
| Monitoring
| Project support
|
External IT Partner
The exact division depends on the business.
Why Would an Internal IT Team Need Help?
Consider a team that's already responsible for daily user support.
Now add a cloud migration.
Then a network upgrade.
Then a security investigation.
Then an unexpected infrastructure problem.
The technical work may be manageable individually, but the combined workload can become difficult to handle.
An external IT partner can provide additional capacity without requiring the company to completely restructure its internal IT department.
Co-Managed IT Isn't the Same as Outsourcing
This distinction matters.
With traditional outsourced IT, an external provider may take responsibility for most or all of an organisation's IT operations.
With co-managed IT, the internal team remains an active part of the operation.
The external provider fills selected gaps.
Those gaps might involve:
Security monitoring
Cloud infrastructure
Network engineering
Backup and recovery
Endpoint management
Microsoft 365
Infrastructure projects
Specialized troubleshooting
This model can be particularly useful when the internal team already has strong knowledge of the environment but needs additional technical depth or capacity.
Cybersecurity Is a Common Use Case
Security is one area where additional resources can be valuable.
An internal IT team may understand its environment extremely well, but cybersecurity requires continuous attention.
A co-managed security model can provide additional capabilities around:
Endpoint security
Email security
Security monitoring
Identity and access controls
Multi-Factor Authentication
Vulnerability management
Incident response
Security assessments
The objective isn't simply to add another security tool.
It's to give the people responsible for the environment additional visibility and expertise.
What About Cloud Infrastructure?
Cloud platforms can also create new responsibilities for internal teams.
A growing environment may involve:
Identity management
Access policies
Cloud applications
Security configurations
Data protection
Monitoring
Cost management
Integrations
An external IT partner can help with specialised cloud work while the internal team retains knowledge of how those services support the business.
Co-Managed IT Can Help With Projects
Another useful application is temporary project support.
A company may not need another full-time engineer after a project is completed. It may simply need additional expertise while the project is underway.
Examples include:
Cloud migrations
Network redesigns
Office moves
Infrastructure upgrades
Security improvements
Hardware refreshes
Disaster recovery projects
Once the project is finished, the relationship can be adjusted.
Clear Ownership Is Important
Co-managed IT works best when both sides know who is responsible for what.
Before starting, teams should establish the following:
System ownership — Who manages each platform?
Escalation paths — Who handles issues that require specialist knowledge?
Security responsibilities — Who investigates alerts and incidents?
Change management — Who approves and documents changes?
Communication — Where do both teams track requests and projects?
Documentation — Where is technical knowledge stored?
Without clear ownership, two IT teams can accidentally create duplicated work or assume the other team is handling an issue.
Where ZIA Networks Fits
ZIA Networks takes a collaborative approach to co-managed IT.
Rather than automatically replacing an organisation's internal IT department, the goal is to provide additional expertise and capacity where it makes sense.
That can include cybersecurity, infrastructure, cloud services, monitoring, backup and disaster recovery, and technical project support.
The internal IT team continues to provide the business context.
The external team provides additional technical resources.
The Takeaway
Co-managed IT isn't about deciding between an internal IT team and an external provider.
For many organisations, the better question is:
How can the two work together effectively?
A well-defined co-managed model can give internal IT teams access to specialised expertise, additional capacity, and extra technical resources while allowing them to retain the knowledge and control they've built inside the organisation.
For businesses that already have an internal IT department but occasionally need more hands or deeper expertise, that can be a practical middle ground.
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