Whenever you do a 60-day rollover, you take constructive receipt of the funds/assets. You have 60 days to get those funds or assets back into another retirement account, or it becomes a taxable distribution to you. If you are under 59 1/2, you'll also pay an early distribution penalty.
It's important to note that the assets/cash must be returned to an IRA in the same state it came out. You CANNOT, for example, do a 60-day rollover of cash, take receipt of the cash, take that cash and purchase an investment property, and then attempt to roll that property into a new IRA. If cash comes out, cash has to go back in. If a piece of property is rolled out, the same property, with no improvements, must go back in, in order to avoid taxes and early distribution penalties.
I have personally run across a scenario where a guy took a 60-day rollover, used the money to buy private stock that was "certain" to double or triple in value in a short time, thinking he could pocket the return on investment and put the original amount back into another IRA within 60 days. Guess what happened? The stock tanked. If he sold it he wouldn't have enough to return the same amount to an IRA - and he'd be stuck with a taxable distribution & penalties. He called the custodian I work for, asking if he could roll the stocks into an IRA, so he could hold on to them to see if the value would go up. The answer was no, because cash, not stocks, came out of the original IRA. He ended up with a $1M taxable event!
Be very careful with 60-day rollovers. That article may have been written before new tax laws were enacted that now limit people to one 60-day rollover per taxpayer per year, regardless of how many accounts you have. It's very risky to be playing games with your IRA funds, be sure to be checking with a financial professional before you do anything.