We have a new relationship with a consulting firm that provides X service to our company. Unfortunately, this relationship has not gotten off to a great start; while the consulting firm is themselves generally well-respected and good at what they do, one of the technical resources they have assigned to our project has proven difficult to deal with.
1) This individual struggles with relaying things via e-mail in a professional manner- e.g. saying "Z feature is terrible and must be changed right away" rather than "Z feature requires improvement, and should be a priority if possible for (reasons)". This has proven especially abrasive as the resource is so new to our company/ecosystem that, for example, they do not yet understand why Z feature was originally built in that manner or even what control we have over its functionality.
2) This individual struggles to stay on-task; again, we have hired this firm to provide X service, but have received several e-mails from this resource (often aligning with the tone in 1) that pertain to areas far outside their original scope of engagement. Ultimately, we had a very specific reason for bringing this firm aboard, and the fact this resource is spending time/effort concentrating on what I would consider frivolous pursuits is concerning.
As of this afternoon, we've firmly clarified 2) with this resource and their lead, reiterating our expectations and needs. However, I envision a response from the resource that aligns with what I describe in 1), and have yet to find a way to adequately address that aspect overall.