i have case study i want to ues the model consultation theory models stag one ENTRY include (exploring organizational needs contraction _physically entering the system_ psychologically entering the system.-stage two DIAGNOSIS include (gathering information _defining the problem_setting goals_generating possible interventation.-stage three IMPLEMENTATION include(choosing an intervention _formulating a plan _implementing the plan _evaluating the plan)-stage four DISENGAGEMENT include(evaluating the consultation process_planning postconsultation matters_reducing involvement and following up_terminating)-7 pagesa-APA staly-put interdction an conclusion