Ukic is not very skilled nor he is mature enough and has poor decision making. That's why he was downgraded from Tau Ceramica to Barcelona and then to Lottomatica Roma in a few years. People who know European basketball will know what this means. Tau Ceramica which is (arguably) one of the top three teams in Europe didn't keep him although they'd lost Calderon
to the NBA.
He is OK for filling the third PG option for Raptors
and IMO Solomon is clearly better than him. Especially in critical moments (though he can be silly at times) and playoffs he will be more useful than Ukic with his passion for winning. Ukic could be returning to Europe after this year.