I think "effort" is in large part a culture thing. And culture comes from having experience and leadership within the team as much as it does from the coaching staff - incoming players need to look to guys who have "been there" and have grown within the culture to understand what is expected of them night in and night out.
It's not that we don't have leadership among our returners... it's that we really don't have that many returners. We're starting fresh with building culture... again.
Between Year 1 and Year 2, we lost about 50% of the minutes played through departures. Same between Year 2 and Year 3. We have just one guy going into his third season wtih EJ (Lewis). We have six who are in their second year with EJ (Lewis, Daniels, Williams, Foreman, Grier, Doorson) - one of which didn't see any time last year (Grier) and another isn't on the court yet this year (Doorson)... so, really, just 4 guys who are suiting up this year who have had even a season of court time with EJ.
It's hard to build culture with so much turnover.
Now, next year, we should only really be losing Bishop, Lewis, and Grier... the third of which hasn't really seen the court much. There should be much more continuity starting the season, and I'd hope more of a "culture" of effort/etc.