In larger consulting firms an experienced technical expert brings in the jobs, however the work is often completed by a person with lesser experience or whatever consultant has availability.
Furthermore, in some instances, the project is divided up into parcels of work to be completed by different consultants. This silo mentality can lead to errors or missed opportunities.
Finally, it would be unusual for a larger consultancy to seek and use highly domain specific expertise from outside their own group. In many instances this is ok however, at times there are only a small number of people that have the appropriate knowledge and skills for a given task.
At MHGEO, providing a task is within Chris De-Vitry’s core skill set it will be completed by Chris De-Vitry. To Ensure a quality product all work is reviewed by a person external to MHGEO that is agreed with you. When domain specific expertise or opinions are beneficial to you, these will be sourced from another consultancy or a sole trader.