Wednesday Analytics: Jonathan Levy, Matt Ignal, and Sam Sheehan preview the Celtics defense and talk about some defensive metrics.<br /><br />0:30 What are the best defensive metrics to evaluate teams and players?<br /><br />3:45 Why do Avery Bradley’s advanced defensive numbers not match the eye test?<br /><br />9:30 Who are the best defenders on the Celtics?<br /><br />11:30 Should the Celtics extend Marcus Smart?<br /><br />Follow us on Twitter: @CLNSRoundtable and Subscribe to the Boston Celtics Newsfeed!<br />---------------------------------------------------------------------------------<br />Powered by GREATS.COM, use PROMO CODE: CELTICSROUNDTABLE for 15% off amazing KICKS & FREE SHIPPING!<br /><br />For CLNS Media Podcast Studio, go to https://www.youtube.com/channel/UCTNMXdUDhy_ivZkhbsQ_7ZA?view_as=subscriber<br />Follow CLNS Media on Twitter - @CLNSMedia<br />Follow CLNS Media on Facebook - facebook.com/clnsmedia<br />Follow CLNS Media on INSTA - Instagram.com/clnsmedia<br /><br />Download the FREE CLNS Media mobile app for iOS & GooglePlay