Mike Martz takes over as the 49ers’ offensive coordinator, so theoretically the team’s dismal fantasy performances should improve. But will it matter if Alex Smith continues his long journey toward No. 1 overall bust?

QUARTERBACK: Smith missed much of last season, then underwent shoulder surgery but should be ready to go. With Martz coming in, Smith could be viewed as a sleeper QB2. But that’s how he was viewed last year, and the year before. His yards and touchdowns might improve to 2006 levels, but he’s too risky as a backup fantasy QB. Just a hunch, but we might see Shaun Hill before the season is done, even if Smith remains healthy.

RUNNING BACKS: I’ve expressed my skepticism of Frank Gore before, and I’m standing by it — I wouldn’t take him as an RB1. With DeShaun Foster on board as insurance, his rushing numbers might not go up, and remember, three of Gore’s four highest rushing games were in the final three weeks of the season (and he only ran for touchdowns in three games, just one after Week 3). He receiving stats might get better under Martz, but not to Brian Westbrook levels. If you take him as your RB1, be damn sure of your RB2. Foster might steal some TDs from Gore and is a decent handcuff or even an RB4 or 5.

WIDE RECEIVERS:The addition of Isaac Bruce helps a rather thin receiving corps, but it won’t make a difference if Smith is ineffective. I wouldn’t risk Bruce or Bryant Johnson as anything more than a WR4, maybe a low-end WR3 if you are adventurous on draft day. They may surprise is Smith becomes the next Joe Montana, but it’s too big an if. Arnaz Battle actually put up the Niners’ best receiving numbers this year, but does Bruce’s arrival displace him? Keep tabs on him during training camp, he’s a WR4 if he stays integral to the offense.

TIGHT ENDS: Vernon Davis is a sleeper TE1 pick — his continued improvement would shoot him into the ranks of elite tight ends. Again, there are so many good tight ends this year, he could drop to a TE2 and be a steal there.

KICKER: How’s this as an indication how bad San Francisco’s offense was last year: In 15 games, Joe Nedney scored just 73 points. And that was with going 17-for-19 in field goals. If the Niners’ offense does turn around, he’s a K2; otherwise, avoid on draft day.