Think Cole actually started as a striker, then went to LW and eventually to LB - he was an excellent full back
Darren Williams CM to either CB or RB Kevin Ball CB to CM Borini CF to LW Was Dennis Irwin not a RB before moving to LB?
Paolo Maldini was also a left back for most of his career and then moved to centre back and had another ****ing career there as well.
Lee Howey (Lee Howey, Lee Howey,....) CF to CB John Mullin CF to CM (albeit briefly) David Kelly CF to RW (minging)