Check your steal rating in Manager's strategy, because if you have the team going on "aggressive" or "very aggressive" he would still go on a 15 even if he did not get a good jump.
That would drop your success rate to .75 which still leaves a 25% chance that he will be thrown out.
changing the odds from
.10^3= 1/1,000
to
.25^3= 1/156
a more reasonable scenario.