I recalled them being huge for problems. Him being old fat and unhealthy was already known. He wasn’t playing all that well with Miami that year before he was traded. He actually rebounded the next year but the suns just got worse.
Suns was SSOL, fast, run up and down the court, lots of movement with Nash running that controlled chaos. Problem has always been defence and big man play, the donut team issue. Shaq doesn’t play much defence then but he is definitely big and could’ve supposedly solved their rebounding and inside scoring issues. So the idea, at least from what I recalled, is that Shaq can get them defensive rebounds and start fast breaks. In the half court he can then score inside and alleviate that issue. Didn’t work out that way. Shaq was still able to help score but he took up way too much space on offence and his plodding way slowed down the suns. The bigger problem, I recalled, was that he was so slow on defence that the suns just got significantly worse on that end, and they don’t have the personnel to cover up for shaqs refusal to pop on screens.
It was a bad fit and they called it quits in less than two years. Those were issues most people expected when they got Shaq, but theoretically if it worked the suns would solved their main problem.