It does not necessarily make it harder, building a team is not an exact science. Building a contender is fine, but life is short and sports is all about having fun. Tanking and semi-tanking seasons are very ****ing far from fun. Obviously I don't want to sign a bunch of mediocre veterans with a long-term plan of puttering along making the playoffs or playins most years, I want to see a plan, but I want to execute that plan while being relatively competitive and hoping for wins.
The Jazz are in a pretty good spot now with lots of assets, and the draft has no guarantees, ever. Wemby looks great, but he still needs to stay healthy, and he's the only "can't miss" rookie in, what, since Lebron?
Also you have zero clue what being "a fan" means. The word might come from "fanatic" (I'm not really sure, to be honest, but you're probably right), but that's _not_ what it means. Check any dictionary.