This stat is completely not TG-related but could be relevant for anyone factoring in trainer intention.
Pletcher has had 12 derby starters overall:
7 of those won a stake prep in March or April with derby results;
9,11,12,14,17,19,19
5 of those did not win a stake prep in March or April with derby results;
2,3,4,4,18 (at odds of 55-1, 6-1 (field), 41-1, 11-1, 58-1 respectively)
Both his runners this year did not win either of their last 2 preps despite going off at 2-5, 4-5, 8-5, 9-5 (possibly indicating him being aware of his own history and saving their best for the derby?) and both are 30-1 on ML.