I have pointed this out before, but that did NOT happen. I'm really disgusted with James Ham for saying it in the first place without bothering to check if it were true.
The CBA is VERY clear. Minimum-salary contracts DO pro-rate, but they do not begin to pro-rate until the first day of the regular season. I don't remember when Casspi was signed (early September, I think), but he was signed and with the team during training camp. Far before the beginning of the regular season.
I don't know what in the world Ham was thinking or what kind of crappy "info" he was getting, but I have at least a possible explanation for what he might have been told, which might have been mistranslated into this false rumor that refuses to die.
What happened was this:
The previous offseason, Houston signed Omri to a two-year minimum deal, with the second season unguaranteed. After the first year, they put him on waivers. Had any team picked him up off of waivers, they would have assumed the second year of the minimum contract. No team picked him up. However, after he cleared waivers we (eventually) signed him to a minimum contract - the exact same value to the dollar that he would have had if we had picked him up off waivers. However, there is a trick with the CBA. As players get more league experience their minimum salary goes up. In order to encourage teams to sign veterans instead of (say) undrafted rookies to deep bench spots, the CBA has a provision where if you sign a vet to a one-year minimum contract, the league picks up part of the tab. The player gets the same amount, but part of the tab (and the cap hit) are absorbed by the league. But since this ONLY applies to one-year deals, it would NOT have applied to the second year of Omri's two-year deal had we picked him up on waivers. So by letting him go through waivers instead of claiming him, the Kings saved money on the contract WITHOUT COSTING OMRI A DIME.
That's what really happened. Let's quit repeating James Ham's false info on this one. He got it wrong.