Andrew Geng

Andrew Geng joined Trellus as its founding engineer. He studied mathematics at MIT and completed a PhD at the University of Chicago, where he researched geometry. Before Trellus, he worked with co-founder Craig Bonnoit at Aurora Flight Sciences. His early work at Trellus included improvements to the software behind its live coaching. Andrew’s research includes published work on Lie groups and symplectic geometry, alongside teaching calculus at the University of Chicago. His background combines mathematical research, teaching and applied software engineering.

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Andrew Geng

When a Buyer Needs a Feature You Don't Have Yet
Sales conversations

When a Buyer Needs a Feature You Don't Have Yet

Clarify the required job, explain current availability, check the effort of an alternative and record a purchase decision without promising a future feature.

When a Dialer Pilot Ends Without the Conversations You Needed
Sales process

When a Dialer Pilot Ends Without the Conversations You Needed

Review one fictional 150-attempt pilot, separate setup controls from ordinary buyer conversations and take a requirement-level evidence card to the decision.

When a Buyer Sends a Vendor Questionnaire During a Sales Trial
Sales process

When a Buyer Sends a Vendor Questionnaire During a Sales Trial

Use a fictional task-completion question and a reusable row register to return useful questionnaire answers without treating an unresolved check as a product promise.

When Two Dialer Pilot Scorecards Disagree
Sales operations

When Two Dialer Pilot Scorecards Disagree

Trace one disputed account, separate late recovery from the on-time score and write a decision both reviewers can reproduce.

When a Buyer Asks for a Sample Call Recording
Sales conversations

When a Buyer Asks for a Sample Call Recording

Match the sample to what the buyer needs to hear or verify. Includes a worked reply and a five-field handoff brief.

When a Buyer Asks for an Implementation Plan Before Signing
Sales conversations

When a Buyer Asks for an Implementation Plan Before Signing

Help a buyer review a proposed rollout without turning an unconfirmed target date into an agreed delivery schedule. Includes a fictional plan and a blank worksheet.

How to Correct Sales Information You Already Sent a Buyer
Sales conversations

How to Correct Sales Information You Already Sent a Buyer

Make the old claim and its correction visible. Use a fictional report-delivery mistake to repair an evaluation document and reconsider the next sales step.

A Buyer Wants a Quote Before a Call. What Should You Send?
Sales conversations

A Buyer Wants a Quote Before a Call. What Should You Send?

Send useful information before asking for a meeting. Work through a fictional six-rep request and separate confirmed scope from the details still to check.

How to Respond to a Sales Price-Match Request
Sales conversations

How to Respond to a Sales Price-Match Request

Check what the buyer wants matched, keep the current offer clear, and give a complete answer after the right review.

When Your Champion Leaves Before the Deal Is Signed
Sales conversations

When Your Champion Leaves Before the Deal Is Signed

Confirm who owns the work, preserve what the buyer actually agreed to, and choose a useful handover or pause.

When the Success Criteria Change During a Dialer Pilot
Sales conversations

When the Success Criteria Change During a Dialer Pilot

Keep checked pilot results, distinguish an unfinished check from an added requirement, and write a useful change note.

When Two Customer References Give Different Answers
Sales conversations

When Two Customer References Give Different Answers

Keep both accounts, compare the work behind them, and give the seller a specific question to answer.