What should be done with empty offices in Dublin?

A piece today in the Irish Times by Killian Woods on Dublin's empty office spaces pointed to multinationals subletting vast amounts of unwanted space, while property firms forecast a shortage going forward, but why is this?Joining Shane to discuss is Killian Woods, Business Correspondent in the Irish Times and Robin Mandal, Architect, former President of the Royal Institute of Ireland and Chair of the Dublin Democratic Planning Alliance.