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Signals & Switches

Paul Tonsager | Advisor and former CN, Maersk, Coyote, and Patriot Rail exec with 30+ years in freight, rail, and logistics. Insights on AI, M&A, truck diversion, intermodal, and supply chain strategy. Where disruption meets opportunity.

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Latest episodes

The Two Pillars Under Amazon Supply Chain Services (ASCS): An Update

Armstrong and Associates just published the 2025 rankings. Amazon is the world's largest 3PL. By a factor of five. Before ASCS launched. And what twenty-three earnings calls didn't say.

Knowledge Transfer Always Meant the Door

For most of my career it meant you were on your way out. Prompting is the first version that runs the other way.

Carpe Diem

The FMC just fined Maersk $1.9 million. The fine is the least interesting thing about it.

The Cage the Railroads Built

A panel of retired rail CEOs at MSU's Broad School said the industry needs to grow. The thirty-year analyst record says they're not wrong. The structural reason nothing changes is worse than that.

What the Architecture Eats: An Update

What Amazon Supply Chain Services (ASCS) does to steamship lines, NVOCCs, IMCs, railroads, and CPG procurement

Et Tu, Donald?

The political bet just failed for United. What does that mean for Union Pacific/Norfolk Southern merger?

The Path Back

The commercial case is made. This piece is for the people who have to act on it.

Part Four drops today — this is the one for operators

A note to all Signals & Switches subscribers

2.5% a Year. Twenty Years. Part Three: The Size of the Gap

The diagnosis is complete. Now — who the actual customers are, why the railroad’s defense doesn’t hold, and the three structural paths back.

Part Three drops today — the stakes are larger than they look

A note to all Signals & Switches subscribers

2.5% a Year. Twenty Years. Is That Enough?

Twenty years. 2.5% a year. And the question nobody in railroad commercial leadership wants to answer.

Part Two drops today — and the timing couldn’t be better

Part Two drops today — and the timing couldn’t be better

The Dotted Line to Your Own Customers

Every business that routes through an intermediary for convenience eventually discovers the intermediary owns the customer. Here is what forty years of that looks like.

Amazon Knows. You Don’t. Here’s Why That’s Not an Accident.

The USPS story isn’t about the Post Office. It’s about who controls the data — and what happens when they don’t need you anymore.

The Bookstore on the Third Floor

Hong Kong was the freest place I ever stood. I didn't fully understand that until it wasn't.

You’re Buying an AI Bot.

Do You Have Any Idea What It Actually Costs?

Who Controls the Boats: Amazon Just Proved What Comes Next

Addendum To Signals & Switches of March 16

Who Controls the Boats

ONE's Seaspan stake is the TTX play that nobody in container shipping is talking about

API and EDI for Dummies (Including Me)

Why the most important technology question in freight belongs in the boardroom, not the server room

100,000 Jobs. Zero Algorithms.

Freight isn’t Silicon Valley. The reasons for these cuts are older than any algorithm.