Important political changes at the top of Birmingham City Council will be decided by the weekend.
Liberal Democrats meet on Friday to elect a new leader to replace John Hemming, who has become MP for Yardley.
The successful candidate will also replace Coun Hemming as deputy leader of the council.
Two members of the 28-strong Liberal Democrat group have said they will definitely stand.
They are Coun Paul Tilsley (Sheldon) and Coun Mick Wilkes (Hall Green).
Nominations close at noon on Thursday.
The successful candidate will work closely with council leader Mike Whitby and will be responsible for leading the Lib Dem element of the Tory-Lib Dem council coalition into next year's local authority elections.
Coun Wilkes heads the council scrutiny section. Coun Tilsley is chairman of the education and lifelong learning committee.