Coming September 29, 2026

The 90-Day Leadership
Field Manual

Practical Guidance for First-Time Leaders

You were promoted into leadership with almost no guidance. This is the practical, day-by-day field manual that walks beside you through the first 90 days — so you can build your confidence and your team’s trust without learning everything the hard way.

By Haraya Del Rosario Gust  ·  Published by Elara Holdings Pte. Ltd.

Be the first to know when it launches

No spam. Just launch updates and early access.

The Problem

Most new leaders are left to figure it out alone.

Every year, millions of people are promoted into leadership roles with a title, a handshake, and an assumption that they’ll figure it out. Most do — eventually. But the cost of that learning curve is significant: disengaged teams, preventable turnover, and leaders who burn out before they find their footing.

82%
of managers enter leadership with no formal training
60%
of first-time managers never receive transition support
$366B
spent annually on leadership development — most bypassing those who need it most

Sources: CMI “Better Managed Britain” report (2023), YouGov survey of 4,500+ workers and managers; DDI Global Leadership Forecast; Training Industry, Inc. global market data.

A Complete Onboarding System

Not just a book. A system.

The 90-Day Leadership Field Manual is the foundation of a structured onboarding ecosystem designed to support the new leader, their boss, and your organization.

For the new leader

The 90-Day Leadership Field Manual

Structured, day-by-day guidance through the first 90 days of leadership. Something to do today, tomorrow, and every day for 12 weeks.

For personal reflection

The Field Notebook

A free digital companion that captures reflections, observations, and plans — mapped to each day in the book.

For their boss

The Busy Boss’ Guide

Everything the supervisor needs to stay supportively involved — in just 3.5 hours across 90 days. Less than one hour per month.

For your organization

The Field Ready Program

Certifies your HR & L&D team as Field Ready Program Facilitators to run 90-day onboarding cohorts at scale. Coming 2027.

Now Recruiting · Limited to 15

Founding Cohort: Shape the Field Ready Program

Before the book launches, I’m inviting 10–15 HR and L&D leaders to join a Founding Cohort — an 8-week facilitated experience that prepares you to bring structured 90-day new-leader onboarding to your organization.

→ Pre-publication access to the complete 90-day framework
→ 8 live sessions with the author (bi-weekly, 90 minutes each)
→ A peer cohort of HR/L&D leaders implementing the same system
→ 10 copies of the published book upon release
→ Certified Field Ready Program Facilitator status when the program formally launches in 2027
→ Direct input into the program curriculum design

The Founding Cohort runs July–August 2026. Designed for HR/L&D professionals, executive coaches, EOS Implementers®, corporate trainers, and senior people leaders.

Express Interest in the Founding Cohort

Send a LinkedIn message or email haraya [at] teamsatori [dot] asia with the subject “Founding Cohort Interest.”

Endorsement

“Many leadership books are full of theory. This one is full of what to actually do. Haraya has created something rare: a book that sits beside you and tells you exactly what to focus on today.”

Gino Wickman

Author of Traction and Creator of EOS®

About the Author

Haraya Del Rosario Gust

Haraya Del Rosario Gust

Serial entrepreneur, Expert EOS Implementer®, and author. Haraya has spent more than 20 years working with leadership teams across the US, UK, Australia, Singapore, and the Philippines. She co-founded StraightArrow (acquired by 2X in 2023), serves as Master Franchisee for EOS Worldwide in the Philippines, and trains entrepreneurs as an EO Forum and Accelerator Trainer.

She wrote this book because she kept seeing the same gap: talented people promoted into leadership and left to figure it out alone.

Connect on LinkedIn →