Consulting Firms: Cube vs Mosaic for Bench and Cash Planning

Every consultant not billed to a client that week is still on payroll, and that bench cost is one of the biggest swing factors in a consulting firm's monthly margin, yet it rarely gets its own forecast line. Most firms bury it inside total payroll and only notice a bench problem when the P&L already shows it.

Build a utilization forecast that projects, by role level, how many consultants will be unstaffed in the coming month based on current pipeline and known engagement end dates. Cube lets you build this as a formula tied directly to your staffing plan. Mosaic can show the resulting cost once it happens, but the forward-looking utilization projection itself is closer to a custom build in either tool, since neither ships a billable-hours utilization forecast pre-configured.

A double-booked senior consultant is a planning failure that shows up two ways: either the firm scrambles to find a replacement (often a more expensive one, if a partner steps in) or a client engagement gets delayed, pushing revenue you already forecast into a later month. Neither tool prevents the double-booking itself, since that's a staffing process problem, but the forecast should be able to absorb the fallout without a full rebuild.

Keep your staffing plan as the input that drives the revenue forecast, not a separate document, so a resourcing change flows through automatically. This is easier to set up correctly in Cube, where the staffing plan and forecast can live in the same connected workbook, than in Mosaic, where staffing data typically has to be imported as a separate feed.

Consulting revenue is recognized as work is delivered, but cash often arrives 45 to 60 days later depending on client payment terms, which means a firm can look profitable on the income statement while running short on cash to cover payroll. This gap widens further when a client disputes an invoice or delays approval of a milestone deliverable.

Model cash separately from recognized revenue in either tool, with its own assumption for average days to collect by client type. A firm heavy on large enterprise clients with 60-day terms needs a materially different cash buffer than one billing smaller clients on 15-day terms, and averaging the two hides the risk.

As a consulting firm grows past a handful of partners running finance out of a spreadsheet, the first real finance hire is usually a controller or senior accountant to own monthly close, billing, and collections. Nationally, accountants and auditors earn a median annual wage around $84,000, with the top quartile above $110,000 depending on experience and location¹. Budget toward the higher end if you're hiring in a major metro or need someone who can also own FP&A duties like the bench and cash forecasting described above.

Whichever platform you choose, that first finance hire, not the software, is usually what actually gets utilization and cash forecasting built and kept current.

• If most engagements follow a similar structure, retainer or fixed monthly fee, Mosaic's recurring-revenue logic will need less adaptation than you'd expect.
• If engagements vary widely in structure, project-based, success fee, hourly, retainer, Cube's spreadsheet flexibility will likely save setup time versus forcing everything into one template.
• If bench cost and utilization forecasting are your biggest pain point specifically, prioritize whichever tool lets you build that forecast first, since it's the number most firms are flying blind on.

Talk to at least two partners who own P&L responsibility before you commit, since the person actually staffing engagements week to week will spot gaps in either tool's default assumptions faster than finance alone.