Please answer the following question: Read the following paragraph and extract the answer for the question: What is the full name of the person Field ask for assistance from because they needed a keyboardist?  Anthony Field and Jeff Fatt were members of The Cockroaches, a Sydney pop band known for their "good-time R&B material" and several singles recorded by independent labels during the 1980s.  In 1988, Field's infant niece, who was the daughter of Cockroaches founder and band member Paul Field, died of SIDS, and the group disbanded. Anthony Field enrolled at Macquarie University in Sydney to complete his degree in early childhood education, and later stated that his niece's death "ultimately led to the formation of [The] Wiggles". Murray Cook, also "a mature-aged student", was the guitarist in the pub rock band Bang Shang a Lang before enrolling at Macquarie.  Greg Page, who had been a roadie for and sang with The Cockroaches during their final years, had enrolled in Macquarie to study early childhood education on Field's recommendation.  Field, Cook, and Page were among approximately 10 men in a program with 200 students.In 1991, while still a student, Field became motivated to use concepts in the field of early childhood education to record an album of music for children.  The album was dedicated to Field's niece.  A song he wrote for The Cockroaches, "Get Ready to Wiggle", inspired the band's name because they thought that wiggling described the way children dance.  Like a university assignment, they produced a folder of essays that explained the educational value of each song on the album.  They needed a keyboardist "to bolster the rock'n'roll feel of the project", so Field asked his old bandmate Fatt for his assistance in what they thought would be a temporary project.The group received songwriting help from John Field, Anthony's brother and former bandmate, and from Phillip Wilcher, who was working with the early childhood music program at Macquarie.  After contributing to their first album, hosting the group's first recording sessions in his Sydney home, and appearing in a couple of the group's first videos, Wilcher left the group and went into classical music.  The group reworked a few Cockroaches tunes...
Answer:
Jeff Fatt