The process should be changed periodically to avoid

becoming too familiar to employees.

The

organisation may want to align with new industry trends even if the current

process is still working.

A long-established process is likely to become more

efficient over time without the need for reassessment.

Consistency in the purchasing and supply process is

always more important than making adjustments.

In a centralised purchasing and supply structure,

the geographical decentralised purchasing departments report to a central

purchasing and supply manager.

In a centralised purchasing and supply structure,

the decentralised purchasing departments have an informal authority

relationship with the plant manager as shown by the broken line.

A combination of a decentralised and centralised

purchasing and supply structure is possible.

In

a multi-plant decentralised purchasing and supply structure, the purchasing

function reports to the plant manager.