The Celtics have a lot of work to do to improve

Chris Forsberg's Summer Forecast series has chugged along and a couple of posts in a row have highlighted the fact that the Celtics have a lot of work to do.  One post is centered on what the Celtics should be able to improve upon and the other is on what the Celtics are weakest on.  The short answer for both of them is "everything" but here's a sampling from both posts.

Summer Forecast: Biggest improvement - Boston Celtics Blog - ESPN Boston

Jeff Clark, CelticsBlog (Scoring) The Celtics were one of the worst offensive teams in the league last year and, in theory, there's nowhere to go but up. A healthy, locked in Rajon Rondo has to help everyone in this regard. I think the young players will figure some things out as well -- in particular Marcus Smart, Jared Sullinger, and Kelly Olynyk. Then again, maybe this is wishful thinking.

Bill Sy, CelticsBlog (Lineup consistency) The future is now. With a roster consisting of seven players on rookie contracts, a re-signed Bradley, a look-see deal with Evan Turner, and Rondo and Jeff Green potentially becoming free agents next summer, it's time for Stevens to start molding this team. Can Sullinger, Olynyk, and Tyler Zeller become mainstays in the frontcourt? Could Smart be a franchise point guard? Win or lose, expect the youngsters to play big minutes.

Summer Forecast: Biggest weakness - Boston Celtics Blog - ESPN Boston

Jeff Clark, CelticsBlog (3-point shooting) I'm sure that several of our players are working on their outside shot (Rajon Rondo, Jared Sullinger, etc.), but this team doesn't have a lot of reliable shooters. Marcus Thornton takes over the bench shooter spot vacated by Courtney Lee and Jerryd Bayless, but he didn't exactly have a good year shooting last year. The Spurs showed us the value of spacing the floor with knockdown shooters but I don't see that improving on this team without further moves.

Bill Sy, CelticsBlog (Finding diamonds in rough) Stevens was very good last season at rejuvenating the careers of veterans Jordan Crawford and Humphries. Subsequently, Ainge capitalized on those makeovers and masterfully flipped them for assets. With the youth movement in full effect, giving valuable minutes to Wallace, Bass, Thornton, and Joel Anthony won't be a priority. However, they're all known commodities and still might get moved by the trade deadline.

So what areas do you think the Celtics can improve the most and what are their biggest weaknesses?