Consider the NFL used to of feature significantly less passing and more use of tailbacks and fullbacks and "pro style" I formation sets.
That is not the case now. This has happened just over the past 10 years or so.
A lot of teams do not even keep fullbacks on the team now.
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NBA basketball has seen a major emphasis on the three ball the past few years. See the Warriors. Basketball used to feature an emphasis on big 5 centers and post up style offenses and/or triangle.
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Baseball, especially since the end of the juice era, features a lot of small ball. Base stealing and high WAR/Exotic stat guys matter now more than just straight up RBI/HR dudes.
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NHL is vastly different too. Remember the New Jersey trap era? We don't have that now. Game has changed a lot since the last strike.
That is not right. Home runs are at all time highs. Everyone is swinging for the fences. Small ball took a hit with analytics after the juiced era. OBP was king and teams started to realize that stealing was only worth it at a certain rate and giving up outs to move runners was a bad idea.
But yes, OP is wrong. Rules changes and analytics change sports strategies all the time ---
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