Only if it falls outside the top 5. Nobody is trading a top 5 pick in this draft for Rondo. Pick 7-10 would probably be in play.
Lakers have 24 mil in cap space. They will sign a superstar this offseason and still probably have assets to trade for Love and/or Rondo.
The Lakers have one asset, their draft pick this year that's it.
They have zero picks incoming and already owe:
2014 second round draft pick to Milwaukee
L.A. Lakers' 2014 2nd round pick to Milwaukee (via Phoenix to Minnesota) [L.A. Lakers-Phoenix, 7/11/2012 and then Minnesota-New Orleans-Phoenix, 7/27/2012 and then Milwaukee-Minnesota-Oklahoma City, 7/11/2013]
2015 first round draft pick to Phoenix
L.A. Lakers' 1st round pick to Phoenix protected for selections 1-5 in 2015, 1-3 in 2016 or 1-3 in 2017 or unprotected in 2018 [L.A. Lakers-Phoenix, 7/11/2012]
2015 second round draft pick to Orlando
L.A. Lakers' 2015 2nd round pick to Orlando protected for selections 31-40 (if this pick falls within its protected range and is therefore not conveyed, then the L.A. Lakers' obligation to Orlando will be extinguished) [Denver-L.A. Lakers-Orlando-Philadelphia, 8/10/2012]
2017 first round draft pick to Orlando
If at least two years after the L.A. Lakers conveyed a 1st round pick to Phoenix, then the L.A. Lakers' 1st round pick to Orlando protected for selections 1-5 in 2017 or 1-5 in 2018 or unprotected in 2019; if the L.A. Lakers have not conveyed a 1st round pick to Phoenix by 2017, then the L.A. Lakers will instead convey their 2017 2nd round pick and 2018 2nd round pick to Orlando [L.A. Lakers-Phoenix, 7/11/2012 and then L.A. Lakers-Orlando, 8/10/2012]
In other words they can't trade a future draft pick till forever or until the Phoenix pick is finally conveyed. They also don't have any young good players under contract.
They have an albatross in Kobe, their draft pick this year if they do the old "draft then trade a players rights", and cap space. That's it.
Basically they're in Brooklyn's situation roughly except they haven't also foolishly given away a bunch of swap rights too.
The Kobe "albatross" thing is overblown. He'll be back... he'll be stellar. He and Nash are basically the only two players on the books next year.
They can trade Nash + their pick (as long as it isn't top 5... they aint trading it if it's top 5) for Rondo.
They can sign Melo
Then in 2015 they will sign Love (he wants to be there).
They'll have plenty of cap space to make it happen. Lakers are gonna be fine. Sure Kobe makes 22 mil a year, but it's less of an issue when the cap is 60 million and they are looking at 30-40 million in cap space over the next couple years.