Yorkshire will today announce the capture of two Australians who they expect to underpin an LV= County Championship Division Two promotion bid in 2012.

It is understood White Rose county bosses will unveil Jason Gillespie as their new first-team coach and opening batsman Phil Jaques as their latest overseas player at a press conference at Headingley.

Paul Farbrace (senior/second team coach), Ian Dews (director of cricket development) and Richard Damms (development manager) are also expected to be unveiled.

All four coaches will work under current director of professional cricket Martyn Moxon, and it marks a complete overhaul of the structure employed during the disappointing 2011 campaign when they were relegated from the top tier of the Championship.

Apart from Moxon, York’s Dews is the only man to retain a position from the previous regime, with Craig White, Steve Oldham, Kevin Sharp and John Blain all leaving.

One of the key questions that will need to be answered at today’s press conference is how 36-year-old Gillespie and Moxon will work together. Will it be Gillespie who takes the lead in helping Andrew Gale pick the side or will that duty remain with Moxon?

Since retiring as a fast bowler, Gillespie, who spent two seasons as the county's overseas player in 2006 and 2007, has also had coaching spells with Cricket Australia and in the Indian Premier League.

Farbrace, 44, left his position as Kent’s director of cricket at the end of September after a difficult season at Canterbury. But the former wicketkeeper has plenty of experience having spent two years as assistant coach to Trevor Bayliss with Sri Lanka.

He was on the team coach infamously targeted by terrorists in Lahore in March of 2009.

Ex-York CC captain Dews has worked for Yorkshire since 1996. He was appointed the director of cricket operations when Moxon arrived from Durham in 2007.

Damms previously worked with the Yorkshire Cricket Board and the county’s age-group and Academy teams.

Jaques, who has also had spells with Northamptonshire and most recently Worcestershire, returns to Headingley after five seasons away.

He scored 2,477 runs from 24 Championship matches in 2004 and 2005 at an average of 61.92, including 11 fifties, five hundreds and two double hundreds.

The 32-year-old left-hander, capped 11 times in Tests for his country, also holds a British passport. He is currently playing for New South Wales, although he has missed recent matches due to a hip injury.

He played in the 2006 Test against Bangladesh in Chittagong when Gillespie scored a career best 201 not out as a night-watchman.

Yorkshire also plan to announce that skipper Gale, England Lions batsman Joe Root and fast bowler Moin Ashraf have all signed new contracts.