Jackson & Coker and Onward Search fill leadership roles. A board member steps down at Allied Healthcare International Inc. (NASD: AHCI).

Jackson & Coker named Thomas McKeever to spearhead its expanded national marketing thrust. Jackson & Coker, based in Atlanta, provides physician permanent placement and locum tenens services. It's part of the Jackson Healthcare family of companies.

Onward Search announced that Leanne Owens will serve as director of staffing. Owens most recently served as area manager for Aquent. Onward Search, based in Wilton CT, provides creative staffing services.

Allied Healthcare International announced that Mark Tompkins was resigning from its board of directors, according to a filing with the U.S. Securities and Exchange Commission. The decision was based on differences of opinion with other board members, according to the filing. Allied Healthcare International provides nurse staffing and home healthcare aides in the United Kingdom.