You did everything right. You built a clean RFP response template. You told every vendor: "Please fill out sections A through F in this format. Use our scoring rubric. Submit pricing in our grid."
Then the proposals come back and they're all different shapes.
Vendor One sent a 60-page slide deck with pricing buried in appendix C. Vendor Two gave you a crisp executive summary and a separate pricing sheet that doesn't match your grid columns. Vendor Three ignored your template entirely and submitted their own "proposed engagement framework." Vendor Four actually followed your format — but left three sections blank.
Now you're supposed to compare these side by side and pick a winner. How?
The natural move is to read each proposal in isolation, take notes, and then "go with your gut" on which felt strongest. This is how most in-house selections actually work — and it's why so many of them produce disappointing outcomes.
Reading proposals in isolation means you're scoring different things. Your notes on Vendor One's pricing end up in a different mental framework than your notes on Vendor Three's framework pitch. By the time you're comparing, you're comparing memories, not data.
The gut feeling also tends to reward the smoothest salesperson, not the most capable delivery team. That's not a criticism of salespeople. It's an observation about what "feels right" actually measures.
This is the single most effective thing you can do, and most teams skip it because it feels like extra work upfront.
Before proposals arrive, define 8 to 12 evaluation criteria. Assign each a weight that reflects how much it matters to your specific situation. For a typical MSP selection, those criteria might look like:
Lock this matrix down before you open a single proposal. If you build criteria after reading them, you'll unconsciously weight things toward whichever vendor impressed you first.
When proposals come back in different formats, your first job is to extract the same information from each one and put it into your matrix.
Create one row per vendor and one column per criterion. As you read each proposal, pull out the relevant information and drop it into the right cell. If Vendor One buries their team structure in page 38 of a slide deck, find it and put it in the "team structure" column. If Vendor Three's proprietary framework doesn't address incident response at all, put "Not addressed" in that cell.
This normalization step is where the real work happens. It's also where most teams throw up their hands and say "this is too hard" — because it is hard. You're translating between languages.
The payoff: once everything is in the matrix, comparing vendors becomes mechanical rather than impressionistic.
For each criterion, define what "good," "acceptable," and "poor" look like in concrete terms. Don't just score 1 to 10 by feel.
For example, on "incident response SLA":
Apply this same rubric to every vendor, regardless of how beautifully their proposal is formatted. A slick deck doesn't change the underlying capability.
Once your matrix is scored, go back through the high-weight criteria where vendors claimed strong capabilities. This is where reference checks and real-world validation matter.
If a vendor scored "good" on incident response SLAs, ask for three client references you can call specifically about incident response. If they scored "good" on team structure, ask for the names of the actual engineers who will staff your account and verify those names appear in the references you're checking.
Proposals are marketing documents. Every claim in them should be treated as a hypothesis until you've confirmed it with someone who's actually experienced that vendor's delivery.
When scoring is complete, your matrix tells you the story. Weighted scores, criterion-by-criterion detail, clear gaps between vendors. It's defensible to stakeholders, auditable if someone asks why you picked who you picked, and — most importantly — it wasn't built on vibes.
If the top two vendors are close in score, that's a good problem. Pick based on the criteria that matter most to your specific situation. If one vendor dominates on your high-weight criteria, that's your answer.
The goal isn't to find the perfect vendor. It's to make a selection you can defend with evidence rather than impressions.
Want a structured way to compare proposals side by side? Request the free Vendor Proposal Comparison Scorecard at itbluprint.com/contact-us — it walks through the matrix setup, weighting, and scoring rubric.