This paper analyze Korean baseball player's efficiency based on entire team and each team by using DEA (Data Envelopment Analysis) and use this efficiency to discuss effective way of recruiting players. Therefore, the purpose of this study was to evaluate each professional baseball team management efficiency through Data Envelopment Analysis. Player who were qualified free agent salary for the input variable and OPS and XR for output variable were used respectively then data were analyzed using Frontier Analyst 4.0. Also the recruiting factors of FA baseball player were confirmed by five baseball experts. we categorize the five factors of recruiting: age, durability, skill of improvement or decline, steady record, necessary position. The results were as follows. First, Han Sang-Hun and Lee Dae-Hyeong recorded the most efficient management among all professional baseball player. On the other hand, Choi showed inefficient management, followed by Park Han-Yi, Son Si-Heon, Lee Jong-wook, Jeong Keun-Woo, Lee Yong-Kyu, Lee Dae-Soo, Kang Min-Ho, Lee Byeong-Kyu.
Professional volleyball league, which was launched and its popularity was steadily increased since 2005, has suffered from difficulties in its operation due to deficits after 2013. In addition, each professional volleyball team has worked out for parent company so far as a means of advertisement but does not look like effective management. Therefore, the purpose of this study was to evaluate each professional female and male volleyball team management efficiency through Data Envelopment Analysis. Player salary for the input variable and points and the number of spectators for output variable were used respectively then data were analyzed using Frontier Analyst 4.0. The results were as follows. First, Hyndai capital and Rush & Cash recorded the most efficient management among all professional male volleyball team. On the other hand, Samsung showed inefficient management, followed by LIG, KEPCO, Woori Card, and Korean Air. Second, GS Caltex and IBK were discovered as the highest management efficiency among all professional female volleyball team. On the contrary, KGC recorded inefficient management, followed by Korea Expressway Corporation, Hyundai Construction and Heungkuk life.
