LaVine was previously represented by BDA Sports. In fact, they helped LaVine land his four-year, $78 million contract back in 2018. LaVine had signed an offer sheet from the Sacramento Kings back in 2018, which the Bulls matched. There should be no concern here with LaVine switching representation.
Lonzo Ball is also signed to Klutch Sports Group and in August he signed with Chicago. LaVine knows his worth and wanted to hire the best agency he could to represent him in contract negotiations in this, the last year of his contract. LaVine has been adamant that he wants to remain a member of the Chicago Bulls. There is nothing wrong with wanting to get paid what you think you're worth.
Hopefully, when the negotiations start, both sides can come to an agreement and keep LaVine in Chicago for the foreseeable future.