Nov 17 (Reuters) - Omni Market Tide Ltd OMT.AX
* Howard Digby will assume role of non-executive chairman
* Announces retirement of non-executive chairman, Glenn Vassallo
Nov 17 (Reuters) - Omni Market Tide Ltd OMT.AX
* Howard Digby will assume role of non-executive chairman
* Announces retirement of non-executive chairman, Glenn Vassallo