Two-pane master/detail with the list split into two labeled jobs. Reach out = proactive check-in owed (Message Now: coach's last message >2 days old, or onboarding never-messaged) — clears only by sending. Awaiting your reply = the athlete messaged last — reply, or close without sending. Click a row to open the thread. Use the toggle to hide replies and focus on outreach.
Sample data. Bubbles: athlete left (stone), coach right (rust). “Send as Jake” delivers via the per-coach EC token; “Copy” = clipboard then open the EC thread; “Close” dismisses an Awaiting-reply thread with no send (disabled for Reach-out items).