1993) (failure to perform services for client and pattern of neglect of client matters causing injury to client together with default in proceedings and evidence of prior discipline warrant three-year suspension); People v. Anderson, 817 P.2d 1035 (Colo. 1991) (attorney's misconduct in failing to respond to discovery requests, in leaving practice without properly withdrawing from cases or filing change of address, in failing to timely prepare a written judgment, and in failing to prevent dismissal of case for failure to prosecute, was mitigated by absence of a history of discipline and warranted three-year suspension); People v. Dash, 811 P.2d 36 (Colo. 1991) (three-year suspension was appropriate where attorney's misconduct involved an extensive and longstanding pattern of neglect and misrepresentation in client matters and grievance proceedings, but was mitigated by emotional problems and absence of prior discipline); People v. Bergmann, 790 P.2d 840 (Colo. 1990) (failure to file personal injury claim resulting in running of statute of limitations, warrants three-year suspension with reinstatement conditioned upon satisfaction of legal malpractice judgment). On the other hand, disbarment is generally warranted when "(b) a lawyer knowingly fails to perform services for a client and causes serious or potentially serious injury to a client; or (c) a lawyer engages in a pattern of neglect with respect to client matters and causes serious or potentially serious injury to a client."