Callis began working for Baseball America directly out of college in 1988.
[5] Callis moderated a weekly Baseball America themed online chat on the sports website Espn.com.
[6] His chats on ESPN were always concluded by his signature lightning round, where he answered a high number of questions in a rapid fire style.
Callis would frequently follow up his answers given during the lightning round in his weekly "Ask BA Column" on the Baseball America website.
[7] In addition to providing baseball themed information during his chats, Callis often shared his views on popular culture topics, including Madden NFL video games, television shows such as 24, and actresses Jessica Alba and Anne Hathaway.