Is All-ETF Portfolio a Good Idea?

"Basically, there are two ways to play the all-ETF portfolio. Broad, or seeking ETFs that have securities that run the gamut from micro to large, international emerging markets, single country, bonds and commodities, explains Michael Iachini, director, Charles Schwab Investment Advisory" "The best solution, Connors says, is a professionally managed portfolio that is globally diversified across broad asset classes that precisely invest in companies by size and style. "Investors should make sure that each asset class provides a diversification benefit to reduce overall portfolio volatility. The mix between equity and fixed income exposure (for example, 60% equity allocation) is of paramount importance to an investor and should be designed to mirror an investor's risk tolerance," he adds." Link to Daily Finance article