The former Brentford boss has wasted no time in re-shaping the Rangers squad as he looks towards a promotion push next season.
Halliday was on the books at Rangers in his younger years before switching to Livingston. The 23-year old then made a move to Middlesbrough five years ago but found it hard to settle in the North East, spending time on loan at Walsall, Blackpool and Bradford in recent seasons.
His loan move to Bradford was made permanent in January of this year but the midfielder was released just five months later in May.
Rangers have now offered Halliday a trial with a view to earning a permanent deal.
The Rangers Rebuild
Two impressive centre-back arrivals in Kiernan and Wilson are sure to have Gers fans expectant of a solid foundation for their Scottish Championship assault next season.
Halliday provides Championship experience while ex-Manchester City youth player Wabara will add electric pace to the Rangers right flank.
Jordan Gibson is something of a wildcard with the former Stoke and West Brom youth player spotted at amateurs Alvechurch FC in the Midland Premier League.
Rangers stalwarts Lee Mcculloch and Kris Boyd have been let go after failing to gain promotion to the SPL. Warburton’s arrival has signalled new ideas and new faces at Ibrox and his pro-activity in the transfer market has brought fresh optimism around the new campaign.