The Niners have drawn the curtains on their but plenty of questions remain heading into training camp.NFL Media's gang of scribes agrees: No team this spring than San Francisco, an organization beleaguered by a rash of surprise retirements, departed free agents and the exodus of a uniquely gifted coach in Jim Harbaugh.It's no surprise that this week's mandatory minicamp centered around one pre sing question: What can we expect from the roster that remains? asked tight end , per ESPN.com. "Then that's cool. That means we have a lot to prove, right? A lot of pre sure. That's good, though. I think this team performs really well under pre sure."Fair point. The Niners shouldn't be written off before we see them on the field, but we have no road map for what has occurred in San Francisco, where a team that recently made three straight trips to the NFC title game looks completely alien in June.They aren't better, but they will be interesting to monitor after this offseason's drastic makeover.Some other observations from minicamp: After watching left guard bolt in free agency and right tackle Anthony Davis retire, the Niners this week. On Thursday, manned left tackle, played left guard and toiled at center, with at right guard and on the right edge, per the team's official Aaron Whitefield Jersey website. The team also used Looney at center for stretches. Few position groups are under more pre sure to mesh in a hurry. One positive: has brought much-needed speed to the pa sing game. Matt Barrows of The Sacramento Bee noted that Smith's lobs from . The former wideout is a ma sive upgrade over from a speed perspective. Also faster: The pace of the offense, with receiver telling ESPN.com that new coordinator Geep Chryst is rolling out an attack that emphasizes speed and tempo, saying: It allows Kaep to see exactly what the defense is trying to give us." Barrows also reported that took the first reps in each individual running back drill. That's likely a nod to his veteran status, but new coach Jim Tomsula has gushed over Bush since the minute they signed him. We still expect the tackle-breaking to play a major role this season. Speaking of Tomsula, the man is saying: Talking purely personal here, OK? It just so happens every time I hear about it, it's not in a good way." After the team lost defenders Patrick Willis, Chris Borland, Justin Smith, , , and , a gang of new faces are learning under new coordinator Eric Mangini. The former and coach has kept the team's 3-4 scheme and seen outstanding work from the now-healthy . The inside linebacker was and has "ruined a number of running plays," per the team's official website.The latest Podcast , and Conor Orr calls in for the debut of a new segment. Find more content on . Robert Stephenson Jersey