In a 10 X 10 room, there's definitely only so much that is going to work; like the proverbial fitting of a square peg in a round hole. Speakers need some space to "bloom", or whatever "fru fru" term a person wants to use. If whatever speakers have to be a certain distance from the back wall, by said manufacturers recommendation, then a person sits not directly on the back wall in their room, you're darn close into near field range. Then you factor whatever else is taking up space in the room....i.e. is the person a hoarder of gear, all sorts of stuff piled everywhere, etc. All factors have to be considered.
Hell, I have a 15 x 28 room and it's tough enough getting it to sound right with large speakers. Currently my speakers are on the short wall and I sit about 14 feet back. The bass is so-so in that setup but livable especially with a Sunfire sub and a good chunk of power. Now, when I had the speakers on the long wall, I sat about 11 feet from them, typically. The bass was way better but the room was a little more crowded feeling. It's always a trade off.