1. Time and energy problem: lawyers may have been occupied by other cases, so they cannot handle more cases at the same time.
2. Personal position: Lawyers may not agree with the reasons for applying for retrial or the position of the winning party, so they are unwilling to represent cases applying for retrial.
3. Economic benefits: Lawyers may think that the economic benefits of retrial cases are not enough to support their own labor and time investment, so they don't want to accept agency.