The Cards under Hart were 11-3, 10-4 and 10-4 and won two NFC East titles. Those teams had hands down more talent then the 98 Cards. The Hart Cards were the best offensive line in football with four of them making probowls in that era. Hart, RB Metcalf and WR Gray were probowlers at the "skill" positions. WR Tilley made probowl in '80 and I think FB Jim Otis made a ProBowl. He led league in rushing one year. They had 3 HOFers(Dierdorf, Wehrli, Smith) on those teams. '98 cant even come close to how good the 70s Cards were. Yet Hart played poorly in his two post season games. Still he is one of my favorite Cardinals and even if I didnt like him I would wish him the best.
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Those 3 years the Cards were 8-12 and 16 in points allowed, that's why they made the playoffs those were the only years Hart was a Card where he had an even average defense, 73 and 77 we were 23rd in points allowed and didn't make the playoffs either year.
That was a terrific offensive team, Otis however only topped 1000 yards once it was the overall balance that made the offense so good, Gray, Tilley, Metcalf we had a good player at virtually ever spot on offense.
Jackie Smith was near the end at that point, the 3 years you mentioned he caught a total of 41 passes, in 3 seasons. Had only 5 in 77 and then 0 his last year with the Cowboys(before the fatal TD drop in the Superbowl that cost them the game). Jackie was a HOF player but not during the cards playoff years.
And yes hart didn't play well in the playoffs 2 TD 4 picks just under 50% passing. But let's look at how Jake did in his 2 playoff games as a Card, 2 TD 4 picks just over 50%. Jake was not any better than Hart. Hart threw away the Ram game(3 picks) Jake gave away the Viking game(2 picks and at least one fumble). Both those teams were too good to give the ball that often.
The difference was, the defense held dallas to 7 points and basically shut them out till the last minute of the game.
Jake didn't carry the 98 team to that win they carried him. The hope was he would continute to get better and the team would win a lot more games. Injuries decimated our defense, and the offense got worse and worse in part because Jake didn't get better. That's why his lack of effort off the field bothers me, it directly affected the path this franchise took.
I don't wish ill on Jake by any means I'm glad he's happy playing handball and living in Idaho, I just wish he'd taken the QB responsibilities more seriously when he was here.