How do coaches evaluate effectiveness?

[Jim]

All of us have our own opinions on players' performance. On one box score I've seen columns on EFF and USG%. What is the criteria for each of these stats?

How do coaches evaluate each players' effectiveness? Is there a website that shows these different criteria for a given game and as a running total for all games played?

[tornado]

the EFF is same as EFG on other sites - it takes int account that 3-pointers are more valuable

the USG is a usage formula that accounts how how effective you are while on the floor and utilizes multiple stats

stats people are always trying to come up with something that accounts for all aspects of a player's contributions

Here are some explanations

https://www.basketball-reference.com/about/glossary.html

the baseball equivalent would be OPS or WAR - which are stats that even the TV announcers never seem to know what they mean

[ihatetea]

Usg% refers to the percent of plays you use while you are on the floor. So possessions that a player takes a shot, turns the ball over, or draws a foul. If he??™s talking about the eff column on the box score website that da coach posts it isn??™t the effective field goal percentage (what tornado referenced) but a number that website came up with. There is a definition on that website. Idr off the top of my head but it??™s something like (points + assists + steals + blocks) - (missed shots + turnovers + fouls I think). That glossary of terms from basketball reference lists the most common advanced stats that the majority of writers use.

[Chico]

Don??™t need all that. Just give me the score and box score.

[Da Coach]

To answer the initial question, coaches look at a lot of things that the fans don't usually pay much attention to. Points scored is usually a less important number to coaches than their +/-, and other stats. That is why a player like ISU's Milik Yarbrough drives his coach crazy.

But every coach I have talked to, including present and past Bradley coaches, have told me that no stat on paper is as meaningful as what they see when they carefully watch and evaluate the game videos. They look at every player on every possession, look at whether a player played with the effort they expect, was defending the way they should, or was where they were supposed to be on offense. That is what coaches mean when they frequently refer to effort and execution.