Написать эссе по теме маркетинговых каналов, на английском нужно сдать до 10-и утра по МСК

With the complexity brought on by rapidly expanding supply chain networks, expanding global markets for finished products, and facilities around the world supporting those growing markets, it has become absolutely essential to the optimal performance of supply chains that all involved parties are completely committed to frictionless supply chain collaboration. Provide the relevant examples in your answer.
a) Discuss the FOUR (4) barriers to supplier collaboration.
b) If you were designing a new supply chain, how would you prevent each of these barriers from occurring?