What Rob's data shows is extremely interesting for our purposes. First off, his findings indicate that older 18 year olds are overvalued at the draft. Whenever a definable group appears to be overvalued, that means that there's probably a market inefficiency that an aware General Manager can exploit, in this case by drafting the youngest group of players on the board in later rounds.
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Statistically speaking, Mike Gillis' habit of drafting older players in later rounds puts the Canucks at a slight disadvantage. Again according to Rob's data, as a group, the youngest players drafted in later rounds outperform their draft slot by the most, and individually, produce the highest rate of over-performers. The oldest players (20+) rarely outperform their draft slot, though, they do produce individual over-performers at a comparable rate as the youngest group - and at a higher rate than any of the middle groupings.