A use-of-funds slide that dates four hires to the raise, when the work depends on an unsigned renewal, has picked the wrong date. The hiring calendar runs from the go-live in the draft order form.
Take a hypothetical Series A closing in October. One account renews on March 1, and the expected expansion needs four implementation engineers. The draft order form sets go-live at June 1. Assume recruiting takes one month from opening a search to an offer and another from offer to start, followed by two months of ramp. Counting back: starts by April 1, searches open by February 1. The signature falls on March 1, inside that recruiting schedule.
On that schedule, gate the offers on the countersignature. Open the searches on February 1, run them to final rounds, and make offers the day the form comes back. A flat renewal closes the searches after a month of recruiting and interviews. A late signature moves the offers, and the customer should hear that it moves go-live.
The decision changes if the customer wants April 1. Ramp will not fit after signature, so whoever covers go-live must start ramping before it: engineers recruited from December on the unsigned deal, or a contract firm whose people spend February and March on the current deployment, paid by the company. The firm then carries April and May while the April 1 hires ramp. The contractors also need two months to ramp in this example; reserving them without training leaves them unready on April 1. Either cost belongs on the slide beside the go-live date, which I would confirm with the customer before the round closes.