Introduce a mechanism so anyone responsible of one or more items in the team's planing spreadsheet can be requested anytime to update the status of concrete items. Update in this context means, each item to reflect the latest status (estimates, remaining work, completion status, etc...)

The above mechanism is key in order to support team staffing, tracking and reporting activities.

The implementation details of this mechanism are as follows:

1. Add a "Sync date" date column to the spreadsheet

2. Add a "Sync required" boolean column to the spreadsheet

3. Every week (or when specifically requested) ...

    a) Set "Sync required" value to "Yes" for the list of items to get an up-to-date status

    b) Anyone responsible for at least one item with "Sync required=Yes" must go and bring the latest status

    c) Once updated, set the "Latest update" value to the current date

Additionally, enforce step 3 by adding a team calendar event so everyone is reminded to take a look and execute steps 3.b and 3.c.