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In hindsight, "the Xindi attack" was a phase change into a much more hard-boiled season of Enterprise.
(startrek.website)
They cranked it up way past 10, all the way to 24.
Scott Bakula is a good actor but he sold the adventurous naivete of S1-2 Archer much better than the moody and distraught Archer in S3. Thankfully season 4 went back to the original spirit.
S4 when he fights Shran with such confidence and gamesmanship, that's my favorite Archer.
YES haha he really got some space smarts by then