The former president of FTX US had a complete deterioration in relationship with SBF during his tenure due to FTX's management style

ChainCatcher news, former FTX US president Brett Harrison tweeted that during his tenure he worked with the "emotionally unstable" SBF, and the relationship with SBF and his deputies has completely deteriorated, with disputes over the management of FTX lasting for months.

Harrison added, "I did not expect that behind these issues was a fraud of billions of dollars. In my career, I have seen similar problems in other more mature companies and believed that these issues would not have a fatal impact on business success." Additionally, he stated that according to publicly available information, the plan was clearly closely controlled by SBF and his inner circle at FTX.com and Alameda, and Harrison did not participate in it along with other executives at FTX US. (source link)