[Liz]

The trick for crispiness could be cutting them in smaller pieces to expose all sides to the blistering oven heat.

Brushing them all over with lemon oil before roasting could also help attain the crispiness.....and adds more lemon flavor.

[Jamestown1630]

Yes; I think my problem was that I had too many potatoes for the pan I used. You need to make sure they are in one layer, not on top of each other; and flip them halfway-through.