Carl began his tenure as dean of The University of Oklahoma College of Pharmacy in August of 1997. Before that, he was a member of the professional staff of the American Council on Pharmaceutical Education, serving as Associate Executive Director from 1995 to 1997. Prior to joining the ACPE, he was Principal Pharmacologist and Group Leader at Zeneca Inc. From 1970 to 1987, he was a faculty member at the University of Wisconsin School of Pharmacy (Assistant Professor, 1970-1975; Associate Professor, 1975-1981; and Professor, 1981-1987). Carl holds a baccalaureate of science degree in pharmacy from the University of Oklahoma and M.S. and Ph.D. degrees in pharmacology from The Ohio State University College of Pharmacy. He is a registered pharmacist in the state of Oklahoma.

As a faculty member at the University of Wisconsin-Madison School of Pharmacy in the pharmacology curricular area, Carl's activities relating to pharmacy education principally involved the teaching of autonomic and cardiovascular pharmacology. He was selected to receive the Outstanding Professor Award three times.

Carl's research has predominantly been in the general areas of autonomic, pulmonary, and cardiovascular pharmacology. His early work led to the development of new avenues of research related to autonomic regulation of allergies mediator release. Subsequent studies on the role of mediators in allergen-evoked modulation of smooth muscle tone resulted in a more intense focus for his research on the pulmonary system, especially on the regulation of the airways. Carl's research focus in the pharmaceutical industry was on pulmonary pharmacology and drug discovery. This work led to the marketing of a novel anti-asthmatic drug, namely the leukotriene receptor antagonist zafirlukast (Accolate). Subsequent directions at Zeneca resulted in the initiation of a discovery program leading to the identification of potent and selective compounds capable of blocking receptors for certain natural peptides as potential clinical candidates for the treatment of asthma.

As a member of the professional staff at the American Council on Pharmaceutical Education, Carl's work focused on the standards by which professional programs in colleges and schools of pharmacy are measured and the quality criteria that constitute the basis for recognition of ACPE-approved providers of continuing pharmaceutical education.

A revised doctor of pharmacy degree program and a non-traditional pathway to that degree have been developed at The University of Oklahoma College of Pharmacy since Carl's arrival. He has been involved in helping enhance the college's commitment to pharmacy education and research as well as to the principle of life-long learning in pharmacy. Additionally, he has fostered the development of pharmacy education in northeastern Oklahoma by establishing programmatic elements and working to develop a full degree program in pharmacy on The University of Oklahoma's Schusterman Center campus in Tulsa.