Speaking after NHS Tayside’s annual review at Ninewells Hospital, Ms Freeman said a global shortage of consultant psychiatrists is making it harder for health boards to fill vacancies.
She said ensuring nurses are properly trained could help alleviate strain on the system.
An independent review into mental health services in Tayside is currently under way following a campaign by people who blame care standards at the Carseview Psychiatric Centre for a series of suicides and other incidents.
The review, headed by Gavin Strang, is collating evidence it collected from members of the public and staff involved in mental health services in Tayside.
Although the independent inquiry will not report back for several months, NHS Tayside has created a Mental Health Alliance in order to improve services.
Ms Freeman said she is optimistic NHS Tayside is committed to making improvements campaigners demand.
She said: “We have the Gavin Strang review which is very important and will report later in the year.
“But what I thought chief executive Grant Archibald said about the Mental Heath Alliance, was very interesting.
“It is is exactly what we’ve been talking about: bringing in those clinicians, medics, nurses and others to say ‘what more do we need to do to improve?’.”
Ms Freeman added: “Some of that is about upskilling our psychiatric nurse cohort to operate at the top of their licence
“The problem with recruiting consultants is a global problem.
“So while we will continue to try to recruit we have to look at what can we do with the staff cohort we have just now rather than sitting and saying’nothing can get better until we fill these vacancies’.
“That’s what Grant described as his Mental Helath Alliance will start to look at doing and I’ll be keen to know if there’s anything I can do to help with that.”
Last week councillor Ken Lynn, vice-chairman of the Dundee Heath and Social Care Partnership pledged his “total commitment” to creating a 24-hour mental health crisis centre in Dundee.
Mr Lynn said he believes the centre should operate in the city centre.
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