I voted Compton instead of Pietersen
Was an easy choice when you consider that Compton played Test Cricket over a 20-year period, debuting at 19 and finishing just shy of his 40th birthday (with WWII splitting his career), while Pietersen has only played for 4-years, debuting at 25 due to eligibility reasons, so all of his test cricket has been played in his prime.
Not much in their career averages
Compton: 78 Tests, 131 Innings, 5807 Runs @ 50.06, HS 278, 17 hundreds, 28 fifties
Pietersen: 54 Tests, 97 Innings, 4647 Runs @ 49.96, HS 226, 16 hundreds, 15 fifties
I think this is a big stretch just to get a current player in the team?