Should the 3-4 49ers explore trades before the Nov. 5 NFL trade deadline?

San Francisco president of football operations/general manager John Lynch believes the 49ers should look internally first.

During an appearance on KNBR's "Murph & Markus" on Friday, Lynch explained why the 49ers don't need to be looking at external opportunities just yet.Understandably, it's hard to evaluate the 49ers when their stars aren't available. But it's not hard to see what San Francisco can be when healthy.

The list Lynch rattled off, which includes 49ers guard Jon Feliciano, has the talent to turn San Francisco's season around. And it won't be long before the reinforcements are ready to contribute.

"Absolutely," Lynch said of the likelihood of injured 49ers players returning this season. "Yes. Very much so. Where those timelines are, I think we're getting closer on all of them. They're all moving in a really good direction.

"We want to make sure that when we get them back, we get them back for good. That would be a boost. Those are really good players that I mentioned. ... You have to make room for all those guys. But they're players that deserve to create spots. That will give us a big boost. But right now, we have to focus on the team we have and find a way to win."

While health is paramount to San Francisco's potential second-half run, Lynch didn't close the door on a move before the trade deadline.

"We'll see," Lynch said of trades. "I think our track record has shown that we're always going to make calls, we're always going to make calls [and] see what's out there, and if we can improve our team, we'll do that. But I like this group."

The 49ers could still make a splash; last year it was thought to be defensive end Chase Young, who didn't pan out.

But the clock is ticking.