well, during his time in sacramento, jason williams was regarded with just as much fondness and popularity as isaiah thomas, if not more so... and then the kings decided to get serious about playoff contention. they traded j-will for a less sexy but much steadier hand in mike bibby. it was not a popular trade at the time amongst the casual fan. mike bibby had been languishing away in vancouver; he was not well-known to most kings fans. but the team jumped closer to a title with bibby at the helm, and the fans quickly moved on from j-will, who himself proceeded to languish away in vancouver/memphis...
that's certainly not a perfectly parallel example to the current situation that this new regime is faced with, but the point is, while the kings are losing, IT is, indeed, a financial boon of near-hysterical proportions for ranadive and co. after all, there's nothing american sports fans love more than an underdog, and the pizza guy serves up his napolean complex nightly to the delight of a great many. but again, the kings are losing, and they're losing a lot. i don't think for one second that ranadive and d'allesandro would hesitate to trade thomas before the deadline this season if they believed such a trade would ultimately result in an eventual shift away from the loss column, regardless of whether or not it's considered "a truly clear upgrade."
the slightness of IT's rookie contract happens to complicate the "truly clear upgrade" part, because thomas wouldn't swapped one-for-one in just about any theoretical trade of note. thus it is up to the new brain trust to determine whether or not they want to pony up what will probably be a fairly sizable contract to re-sign isaiah thomas (and, in all likelihood, for a sixth man's role), or if they'd prefer to trade him while his value is still at its highest in order to bring back a piece or two that perhaps fits the direction of the team better. again, i don't think they'd hesitate to move him...