In the SIAM structure that uses a lead supplier as the service integrator, who has the contractual relationship with the external service providers?
A. customer organization
B. lead supplier
C. prime vendor
D. service integrator
In the SIAM structure that uses a lead supplier as the service integrator, who has the contractual relationship with the external service providers?
A. customer organization
B. lead supplier
C. prime vendor
D. service integrator