As the sport keeps growing in North America and the States, Arena is confident that coaches are getting a better education which will certainly help increase the overall ability of the players and help advance the domestic competition.
"I think the sport continues to grow. I think our coaches are much more experienced today than they were 20 years ago," Arena told USsoccer.com.
"I think having a professional league now that's going to be around for a long time helps. It gives coaches the opportunity to witness what we're doing each and every day on the professional level. Those are opportunities that allow coaches to grow. Our Academy programs are growing. Everything in this country is growing."
Arena added that today provides a very strong future for any coaches in professional sport in the USA with soccer now one of the more popular sports in the country.
"I would again mention the fact that I think our coaching environment in the United States is fabulous," he added.
"Having the opportunity to be a coach in this country with MLS and the Academy programs growing is great. Then on top of that, witnessing the top professional leagues in the world for any sports with the NFL, MLB, NBA, NHL and MLS, is a fabulous environment to learn to be a coach. This is a great time for coaches in our country, in our sport."