The fastest way to grow past a certain point isn't working more hours — it's buying back the hours you're currently spending on things that aren't your job anymore.

The short version: a quick read to help you decide. Not a replacement for the book.
Martell gives a concrete framework for delegation aimed at founders stuck doing low-value tasks.
Every task has an implied hourly value; scale comes from systematically buying back time through delegation and hiring.
1. Calculate your effective hourly rate.
Judge every task against your target rate.
2. The Buyback Loop: document, transfer, monitor.
Delegation failure is usually a process failure.
3. Hire before you're desperate.
Waiting until you're drowning produces bad hires.
4. The DRIP matrix: Delegate, Replace, Invest, Produce.
Sort tasks to see what to hand off first.
5. Time bought back must be reinvested into growth.
Redirect freed capacity into high-leverage activities.
Founders who've hit a ceiling doing the tasks that got them started rather than tasks that scale them.
How to use this: these steps build on each other — the Buyback Loop only works once you know what your time is worth. Do them in order.
Principle: You cannot decide what to hand off until you know what your time is worth.
The action: Work out your real hourly rate, then set the target rate you are aiming for.
Principle: Delegate, Replace, Invest, Produce — sort tasks before you try to offload them.
The action: List a full week of your tasks and sort every one into the four buckets.
Principle: Delegation failure is usually a documentation failure, not a people failure.
The action: Write a process document for the task you named, detailed enough that someone else could run it without asking you.
Principle: Monitor a few cycles before letting go fully — handing off is a process, not an event.
The action: Hand the task over, then check the output for the first few cycles rather than taking it back at the first mistake.
Principle: Time bought back must be reinvested into growth, or it quietly refills with more of the same.
The action: Name in advance what the freed hours are for, and protect them in your calendar before they disappear.