Sooner or later they identified a consultant they felt they could do business with (= with whom they could perform properly). 最后他们找到了一个他们觉得可以与其愉快合作的顾问。 Whatever you're asking for is a phrase to "mark" an "unmarked" classification, which is frequently likely to be awkward. I am from India rather than a local English https://emiliojjolw.ampedpages.com/5-essential-elements-for-case-study-solution-provider-64727001