According to the case study, which of the following are likely reasons Twitter changed its executive leadership? Check all that apply. Twitter faced increased competition from companies such as Facebook. Twitter wanted a more streamlined decision-making process. Twitter's board of directors demanded changes in the executive structure. Twitter must achieve a higher conversion rate of passive to active users. How could Twitter maximize its effectiveness? Frequently change its strategies, but rarely change the way employees do their work Proactively change to keep up with changes in its environment Change frequently at the top levels of the company, but keep the bottom levels of the company the same Minimize the number of changes it makes overall Which of the following is the most important reason for Twitter to change in response to changes in its business environment? O Change will prevent Twitter employees from becoming bored with their jobs. Change will integrate strategies from Twitter's past and future CEOS. Change will ensure Twitter is not punished by federal or state governments. Change will help Twitter become more successful in the future.