Simplify the following text for a Grade 10 native English-speaking person.
Original: Ian Holland McCall ( born September 30 1964 in Dumfries , Scotland ) is a former Scottish footballer and currently the manager of First Division side Partick Thistle .
Simplified: Ian Holland McCall ( born 30 September 1964 , in Dumfries ) is a Scottish former footballer and is the manager of First Division side Partick Thistle .