Nov 15, 2015; Denver, CO, USA; Kansas City Chiefs cornerback Sean Smith (21) intercepts a pass thrown by Denver Broncos quarterback Peyton Manning (18) during the first half at Sports Authority Field at Mile High. Mandatory Credit: Chris Humphreys-USA TODAY Sports

The Oakland Raiders have started the 2016 NFL Free Agency period with a bang, signing three of the best players on the market.

Kelechi Osemele: Five years, $58.5M, with $25.4M guaranteed.

Sean Smith: Four years, $40M, with $20M guaranteed.

Bruce Irvin: Four years, $37M, with $12.5M guaranteed.

If the team has it their way, they aren’t done yet. Reggie McKenzie has zeroed in on Eric Weddle, and they also are reportedly in negotiations with Erin Henderson.

Including the carryover from the last season, Oakland has an adjusted cap number of $168,332,753. After the first three signings, the Raiders have a total cap number of $141,126,431.

In other words, the team has $27,994,722 in remaining cap space. The team will have to spend just above $6M on their draft selections, so the actual cap number is just under $22M.

Based on the market value of other safeties who have signed so far, Weddle should be in the $6M to $7M range. Henderson shouldn’t be more than a couple million.

If both Weddle and Henderson sign, and then including the cost for the draft picks, the Raiders would have about $13M in cap space leftover. Plenty of money to bring back Donald Penn, and/or Aldon Smith.

Also, the team can easily create another $9.1M in cap space if they wanted to. Roy Helu can be released for $2M in savings, Matt McCants can be released for $1.6M in savings, and 11 other players with non-guaranteed contracts can be released for $5.5M in savings.

The team could also decide to save some of the leftover cap space and carry it over next season, as Derek Carr and Gabe Jackson will be up for extensions next year.

Either way, McKenzie has plenty of options and he will continue to have flexibility in the future, as the contracts being signed are once again team friendly.