In 2015, I did a post on "triple threat" triple crowns "triple threat" triple crowns.
Suppose that we looked for league leaders in stats that might represent three different skills:
Speed (triples, SBs, SB%)
Power (SLG, ISO, HRs, TBs, extra-base hits)
Getting on base (OBP, times on base)
So if a player lead his league one year in at least one stat from all three skills, he won the "triple threat" triple crown. The link above has a table with all the winners. The last guy to do it was Jim Rice in 1978.
Right now, Trout is tied for 1st in SB%, leads in SLG, HRs, TBs, OBP and times on base. So he has the lead in at least one stat in all three categories.