Your predecessor left and took her directs with her. That's not a resignation — that's an exodus. Nobody told you the impact, which means either (a) they don't know, or (b) they know and didn't want to say it in an interview. Your first job is to quietly find out what actually broke and who's angry.
Marina Tong (COO) flagged platform stability. A COO only cares about a tech platform's stability when it has actually been unstable. This is almost certainly why you were hired — and it's your cover to prioritise resilience over shiny new delivery.
The political map
Stewart Halliday (CIO GPS) — ultimate sponsor. By Day 100 he wants one credible narrative: "I've mapped it, I've stabilised X, here's the plan."
Marina Tong (COO) — the person who named stability. Your ally and yardstick. A visible stability win by Day 60 buys enormous credibility.
Sriram Natarajan (Asia GPS Tech) — the boundary question. His remit overlaps yours. Clarify the HK/GZ operating model and reporting matrix with him in the first two weeks, before turf ambiguity becomes friction.
Fiona Gibbons (Head GPS Tech UK) — likely your peer on the global side. Learn how global delivery runs through her teams.
Nicholas Soo (Product Mgmt Asia) — the business partner who feels the pain daily. Win him early.
Simon Cox (Payables & Receivables Tech) — understand where his book ends and yours begins.
Unknown to resolve Day 1: who is your direct line (Global Head CBCC Sub-value Stream)? Get the name, the org chart, and a 1:1 on the calendar immediately.
Workstream 1 — People
0–30
Meet every team member 1:1 (~25 across HK + GZ, in 2–3 weeks). Same four questions every time: (1) What do you own? (2) What's on fire? (3) What did we lose when the predecessor left? (4) What would you change if you were me?
Map skills, roles, vacancies, and who holds the knowledge the departed team took with them — single points of failure.
Find out why the predecessor and her directs left. Ask HR, peers, and the team directly. The answer dictates your retention strategy.
31–60
Decide the target operating model: how do HK and GZ split work? Is GZ a captives model, vendor, or HSBC China entity? This determines backfill freedom.
Identify flight risks and key-person dependencies. Retention conversations with the top 5.
Start backfilling the most critical gaps — don't wait for full org design to plug a bleeding hole.
Map the CBCC platform service chain end-to-end in the region. Find incident history, risk register, control gaps, known-but-unfixed fragility.
This directly answers Marina Tong. Treat every instability as evidence you're collecting.
Understand the regulatory surface: HK cross-border payments, ISO 20022/SWIFT obligations.
31–60
Build a stability baseline: incident counts, MTTR, availability, top recurring failure modes.
Get into the risk forums. Represent CBCC. Partner with risk stewards/champions.
61–100
Drive 1–2 concrete stability remediations to completion and show the number move. This is the single most valuable thing you can deliver to Marina Tong.
Workstream 4 — Stakeholder
0–30
Build the full stakeholder map. Re-meet the interview panel as a colleague now, not a candidate.
Resolve the reporting line and the Sriram boundary in week 1–2.
31–60
Socialise early findings. Give your boss and the COO a "here's what I've found, here's what I'm doing" checkpoint at Day 30.
61–100
The 100-day review: "Here's the landscape, here's what I stabilised, here's my plan and what I need." Secure resourcing and mandate for 6–12 months.
Your personal operating rhythm
Week 1–2: zero structural decisions, all listening. 8–10 meetings/day of 1:1s and intros.
Timezone: HK is your anchor; GZ is +0; UK is your peer set. Protect mornings for HK/GZ, late afternoons for UK.
Keep a running "surprises" log — anything contradicting the interviews goes in it.
Don't promise delivery in week one. The only promise: "I'll map it, stabilise it, and come back with a plan."
Red flags to watch (act fast if you see them)
The portfolio is materially under-funded or over-promised vs capacity.
GZ turns out to be a silo or an employment-model minefield.
Stability is worse than Marina Tong implied — the exodus did real damage.
Reporting line is ambiguous or the Sriram overlap is contested.
Key-person dependencies that cripple you if one more person leaves.
30-second version (when your boss asks "what's your plan?")
"First 30 days: map the people, the portfolio, and the platform risk. Next 30: stand up governance, a stability baseline, and pick quick wins. Final 40: land the wins, show stability improving, and present the forward plan and what I need to execute it."