You need to tell the evaluator how you will do what you say you'll do. This gives the evaluator a feeling for your technical competence. Go into enough detail. Once again, however, all offerors will likely go this far. Now you are getting above and beyond the norm.
Every task has potential bottlenecks to successful completion.
Think hard about what obstacles might prevent you from bringing this task to closure. You can be sure the client will. You need to spell out the direct benefits your approach will bring to the client. Do not assume the evaluators will automatically see these benefits. You must hit readers over the head with them.