The A's are at the MLB Winter Meetings with eyes on providing manager Bob Melvin with even more options to fill out his lineup, but it's not as if he doesn't have plenty to choose from already.

Whether it's the starting rotation, the infield or the outfield, Oakland possesses great depth at many positions, and a lot of that depth is young.

Both Jesus Luzardo and A.J. Puk made their long-awaited debuts for the A's last season, and Melvin told NBC Sports California that both are expected to be in the starting rotation when the season commences. Just how many players are a member of that rotation remains to be seen, however.

"I think anything is possible for us," Melvin said of the rotation. "We like to get a little bit creative. I think ideally guys like to be in a five-man rotation, it allows them to prepare. But whether it's the piggybacking-type thing, whether it's a six-man rotation for a period of time ... anything creative I think we would potentially look at, but I think as we go into the season right now, we'd probably look at a five-man rotation to start."

One would imagine that both Sean Manaea and Mike Fiers have been earmarked for two more spots in the starting rotation, as might Frankie Montas. Melvin also mentioned players like Chris Bassitt, Daulton Jeffries and James Kaprielian as additional pitching options.

That depth extends to the infield, as well. The A's were so confident in their second-base options that they felt comfortable trading the versatile Jurickson Profar to the Padres. Between Franklin Barreto, Jorge Mateo, Sheldon Neuse and even Chad Pinder, Oakland has several bodies to consider pairing with shortstop Marcus Semien in the middle of the infield. The trouble is, each of them bats right-handed, as does the vast majority of the A's current lineup. That doesn't seem to concern Melvin too much, though.

"I think we're always looking potentially for another left-handed bat in a little bit of a right-handed dominant lineup," Melvin explained, "but we're comfortable with the guys we have right now and we feel like we have multiple options."

The A's manager went on to admit that, in a perfect world, Oakland would be able to add a few left-handers, particularly considering the abundance of dominant right-handed starters in the AL West. The Angels reportedly are pursuing Gerrit Cole, and he could be the best of the bunch. The A's are aware of what their competitors are doing at the Winter Meetings, but they have reason to be confident.

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"We keep an eye on the teams in our division," Melvin said. "We keep our eyes on every team in the league, but at the end of the day, it's about what we can do to enhance our club and make our club better. You're talking about a club that's won 97 games two years in a row, so we feel pretty good about where we're at."

The A's already possess a deep roster, but perhaps with an addition or two, a deep playoff run could be in store.