Another contrasting perspective on transference and countertransference is offered in classical Adlerian psychotherapy. Rather than using the patient's transference strategically in therapy, the positive or negative transference is diplomatically pointed out and explained as an obstacle to cooperation and improvement. For the therapist, any signs of countertransference would suggest that his or her own personal training analysis needs to be continued to overcome these tendencies. Andrea Celenza noted in 2010 that "the use of the analyst's countertransference remains a point of controversy".