SAN FRANCISCO – There is no betting line, as far as we know, on whether this season’s Warriors can assemble their puzzle pieces, outgrow their inconsistencies and rumble into mid-April as a legitimate NBA championship threat.If there were such a line, the action would be heavy. Because, 25 games into their NBA season, the Warriors remain among the league’s most perplexing squads.The next 20 games, beginning Friday night against the Minnesota Timberwolves, should offer a measure of clarity.Of the Warriors’ next 20 games, 14 are at Chase Center, including an eight-game homestand in mid-January. This is a platinum opportunity to build the kind of momentum that thus far has been elusive.After closing a three-game road trip with consecutive wins – without Stephen Curry, without full availability of Draymond Green and Jimmy Butler III – the league’s road-weariest team has allowed itself two full days of recovery, followed by two practices that were considered productive and helpful.Curry, who missed the last three games, practiced both days and is set to return Friday. Butler practiced and is itching for wins. De’Anthony Melton made his...